Democratic Republic of Congo's opposition Presidential candidate Moise Katumbi (C) waves to his supporters as he walks to the prosecutor's office over government allegations he hired mercenaries, in Lubumbashi, the capital of Katanga province of the Democratic Republic of Congo, May 11, 2016. REUTERS/Kenny Katombe 

Democratic Republic of Congo's opposition Presidential candidate Moise Katumbi is escorted by his supporters as he walks to the prosecutor's office over government allegations he hired mercenaries, in Lubumbashi, the capital of Katanga province of the Democratic Republic of Congo, May 11, 2016. REUTERS/Kenny Katombe 

Supporters of Democratic Republic of Congo's opposition Presidential candidate Moise Katumbi gather outside the prosecutor's office where he was questioned over government allegations he hired mercenaries, in Lubumbashi, the capital of Katanga province of the Democratic Republic of Congo, May 11, 2016. REUTERS/Kenny Katombe 

Democratic Republic of Congo's opposition presidential candidate Moise Katumbi (C) waves to his supporters as he walks to the prosecutor's office over government allegations he hired mercenaries in a plot against the state, in Lubumbashi, the capital of Katanga province of the Democratic Republic of Congo, May 9, 2016. REUTERS/Kenny Katombe TPX IMAGES OF THE DAY

Democratic Republic of Congo's opposition presidential candidate Moise Katumbi (C) is escorted by his supporters as he walks to the prosecutor's office over government allegations he hired mercenaries in a plot against the state, in Lubumbashi, the capital of Katanga province of the Democratic Republic of Congo, May 9, 2016. REUTERS/Kenny Katombe 

Demonstrators hold up a banners that read "Out mercenary, Chile repudiates you" (L) and "(Nicolas) Maduro (Venezuela's) President" during a protest against Henrique Capriles, Venezuela's opposition leader and governor of Miranda state in in Santiago, July 18, 2013. Capriles is in Chile as part of a personal visit to meet with several Chilean politicians. REUTERS/Ivan Alvarado (CHILE - Tags: POLITICS CIVIL UNREST) 

A group of men from the former Soviet Union walk out at the end of their appeal hearing at Libya's Supreme Military Court in Tripoli May 29, 2013. A Libyan military court last year handed down long prison terms to the men accused of serving as mercenaries for ousted leader Muammar Gaddafi in the 2011 conflict. REUTERS/Ismail Zitouny (LIBYA - Tags: CIVIL UNREST POLITICS CONFLICT) 

A group of men from the former Soviet Union are seen behind bars during an appeal hearing at Libya's Supreme Military Court in Tripoli May 29, 2013. A Libyan military court last year handed down long prison terms to the men accused of serving as mercenaries for ousted leader Muammar Gaddafi in the 2011 conflict. REUTERS/Ismail Zitouny (LIBYA - Tags: CIVIL UNREST POLITICS CONFLICT) 

A group of men from the former Soviet Union are seen behind bars during an appeal hearing at Libya's Supreme Military Court in Tripoli May 29, 2013. A Libyan military court last year handed down long prison terms to the men accused of serving as mercenaries for ousted leader Muammar Gaddafi in the 2011 conflict. REUTERS/Ismail Zitouny (LIBYA - Tags: POLITICS CONFLICT CIVIL UNREST) 

An appeal hearing for a group of men from the former Soviet Union (R) gets underway at Libya's Supreme Military Court in Tripoli May 29, 2013. A Libyan military court last year handed down long prison terms to the men accused of serving as mercenaries for ousted leader Muammar Gaddafi in the 2011 conflict. REUTERS/Ismail Zitouny (LIBYA - Tags: CRIME LAW CONFLICT POLITICS) 

Opposition conservative Nationalist Republican Alliance party (ARENA) congressman Roberto D'Aubuisson attends a news conference in San Salvador April 8, 2013. According to local media, D'Aubuisson said on Monday that the accusations of Venezuelan acting President Nicolas Maduro, who said foreign mercenaries had entered from Central America with plans to spread violence and sabotage the electricity grid, were a smokescreen. REUTERS/ Ulises Rodriguez (EL SALVADOR - Tags: POLITICS) 

Opposition conservative Nationalist Republican Alliance party (ARENA) congressman Roberto D'Aubuisson attends a news conference in San Salvador April 8, 2013. According to local media, D'Aubuisson said on Monday that the accusations of Venezuelan acting President Nicolas Maduro, who said foreign mercenaries had entered from Central America with plans to spread violence and sabotage the electricity grid, were a smokescreen. REUTERS/Ulises Rodriguez (EL SALVADOR - Tags: POLITICS) 

A Mexican pro-Cuba activist holds a sign reading "Yoani is not Cuban, is a mercenary" outside the Justice Committee of Senate as Cuba's best-known dissident blogger Yoani Sanchez holds a news conference inside, in Mexico City March 12, 2013. REUTERS/Edgard Garrido (MEXICO - Tags: POLITICS CIVIL UNREST) 

The population of Tai collect water distributed by the United Nations peacekeepers in western Ivory Coast near the border with Liberia, June 18, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: CIVIL UNREST MILITARY SOCIETY POLITICS CONFLICT) 

United Nation peacekeepers prepare to distribute water from their water truck to the population of Tai, in western Ivory Coast near the border with Liberia, June 18, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: CIVIL UNREST MILITARY SOCIETY POLITICS CONFLICT) 

A United Nations peacekeepers soldier prepare to distribute water to the population of Tai, in the western Ivory Coast near the border with Liberia, June 18, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: CIVIL UNREST MILITARY SOCIETY POLITICS CONFLICT) 

Losseni Fofana of the Ivory Coast Republican forces (FRCI) and commander of the military operation in the Tai area, stands with his men during a patrol on the road to Para village, in the western Tai area near Ivory Coast's border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. Picture taken June 17, 2012. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY CIVIL UNREST CONFLICT POLITICS) 

Ivory Coast Republican forces (FRCI) stand on a road near Para village, in the western Tai area near Ivory Coast's border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT) 

An Ivory Coast Republican forces (FRCI) soldier patrols near Para village, in the western Tai area near Ivory Coast's border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT) 

Ivory Coast Republican forces (FRCI) patrol near Para village, in the western Tai area near Ivory Coast's border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT) 

Ivory Coast Republican forces (FRCI) patrol near Sacre village, in the western Tai area near Ivory Coast's border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT) 

An Ivory Coast Republican forces (FRCI) soldier stands near bullets near Para village, in the western Tai area near Ivory Coast's border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT) 

A soldier of the Ivory Coast Republican forces (FRCI) holds his weapon while on a patrol on a road near Sacre village, in the western Tai area near Ivory Coast's border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT) 

Ivory Coast Republican forces (FRCI) stand in a burnt out camp while on patrol on a road near Para village, in the western Tai area near Ivory Coast's border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT) 

Traditional hunters "Dozo" (R) follow Ivory Coast Republican forces (FRCI) on patrol at Dohoula village, in the western Tai area near Ivory Coast's border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT) 

Traditional hunters "Dozo" stand with their weapons at Sioblo-Oula village, in the western Tai area near Ivory Coast's border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT) 

Traditional hunters "Dozo" stand with their weapons at Sioblo-Oula village, in the western Tai area near Ivory Coast's border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT) 

A man pushes a bicycle past Ivory Coast Republican forces (FRCI) on patrol on a road near Sacre village, in the western Tai area near Ivory Coast's border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT) 

Ivory Coast Republican forces (FRCI) patrol near Para village, in the western Tai area near Ivory Coast's border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT) 

The wreckage of a vehicle used by United Nations peacekeepers killed in an ambush about two weeks ago, is pictured on a road near Sao village, in the western Tai area near Ivory Coast's border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including the seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT) 

People ride past the wreckage of a vehicle used by United Nations peacekeepers killed in an ambush about two weeks ago, on a road near Sao village, in the western Tai area near Ivory Coast's border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including the seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT) 

People look at the wreckage of a vehicle used by United Nations peacekeepers killed in an ambush about two weeks ago, on a road near Sao village, in the western Tai area near Ivory Coast's border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including the seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT) 

Ivory Coast Republican forces (FRCI) patrol on a road near Sacre village, in the western Tai area near Ivory Coast's border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT) 

A girl stands next to the remains of a burnt down house in Sacre village, in the western Tai area near Ivory Coast's border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT) 

The interior of a burnt down house is seen in Sacre village, in the western Tai area near Ivory Coast's border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT) 

Displaced people return to their village in the western Tai area near the border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT) 

Displaced people return to their village in the western Tai area near the border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT) 

Displaced people return to their village in the western Tai area near the border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT) 

Displaced people return to their village in the western Tai area near the border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT) 

United Nations peacekeepers patrol at Dohoula village, in the western Tai area near the border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT) 

United Nations peacekeepers patrol near Dohoula village, in the western Tai area near the border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT) 

United Nations peacekeepers (L) patrol with Ivory Coast Republican forces (FRCI) at Dohoula village, in the western Tai area near the border with Liberia, June 17, 2012. The area has been hit by a series of attacks in recent weeks, killing at least 22 people, including seven United Nations peacekeepers. Ivory Coast has said the attacks were carried out by Liberian mercenaries and pro-former president Laurent Gbagbo Ivorian militias who crossed over from Liberia. REUTERS/Luc Gnago (IVORY COAST - Tags: MILITARY POLITICS CONFLICT) 

Al-Kaaqa Brigade Commander Othman Ibrahim al-Mlegta speaks at a news conference about the 24 nationals from Ukraine, Belarus and Russia who were handed prison terms after being accused of serving as mercenaries for ousted leader Muammar Gaddafi in last year's war, in Tripoli June 6, 2012. REUTERS/Ismail Zitouny (LIBYA - Tags: POLITICS CRIME LAW) 

Al-Kaaqa Brigade Commander Othman Ibrahim al-Mlegta speaks at a news conference about the 24 nationals from Ukraine, Belarus and Russia who were handed prison terms after being accused of serving as mercenaries for ousted leader Muammar Gaddafi in last year's war, in Tripoli June 6, 2012. REUTERS/Ismail Zitouny (LIBYA - Tags: POLITICS CRIME LAW) 

People take part in the funeral of Ali Al-Quoud, a guard at Libyan prime minister's office, in Tripoli May 9, 2012. Quoud was killed in a firefight outside the Libyan prime minister's office on Tuesday after a protest by militiamen demanding cash from the government turned violent. The placard reads: "The honourable revolutionaries are not mercenaries". REUTERS/Ismail Zitouny (LIBYA - Tags: POLITICS CIVIL UNREST OBITUARY) 

A woman walks beside a billboard in the village of Palpite in the Zapata swamp near the Bay of Pigs April 8, 2012. On April 17, 1961, a force of CIA-trained Cuban exiles, backed by U.S. ships and planes, came ashore at the Bay of Pigs 100 miles (160 km) southeast of Havana in a bloody attempt to spark a counter-revolution. Cuban leader Fidel Castro rallied tens of thousands of troops and citizens to the battle and two days later, on April 19, 1961, declared victory as the attackers fled or were killed or captured in the botched invasion. Billboard reads "The mercenaries reached to this point". Picture taken April 8, 2012. REUTERS/Desmond Boylan (CUBA - Tags: SOCIETY ANNIVERSARY MILITARY POLITICS) 

Construction is underway at Koidu Holdings' new ore processing plant at their kimberlite diamond mine in eastern Sierra Leone, March 2, 2012. Sierra Leone's only pit diamond mine has come far from its origins as wartime booty presented to mercenaries by a grateful military junta. Seventeen years and several changes of ownership later, Koidu Holdings is selling gems in outlets such as U.S. jeweller Tiffany & Co. and considering a possible public listing, which could raise hundreds of millions of dollars to fund expansion. Picture taken March 2, 2012. To match feature SIERRALEONE-DIAMONDS/ REUTERS/Simon Akam (SIERRA LEONE - Tags: ENVIRONMENT BUSINESS CONFLICT CIVIL UNREST) 

Heavy equipment is used at the 'No. 1 Pipe' at Koidu Holdings' kimberlite diamond mine in eastern Sierra Leone, March 2, 2012. Sierra Leone's only pit diamond mine has come far from its origins as wartime booty presented to mercenaries by a grateful military junta. Seventeen years and several changes of ownership later, Koidu Holdings is selling gems in outlets such as U.S. jeweller Tiffany & Co. and considering a possible public listing, which could raise hundreds of millions of dollars to fund expansion. Picture taken March 2, 2012. REUTERS/Simon Akam (SIERRA LEONE - Tags: ENVIRONMENT BUSINESS CONFLICT CIVIL UNREST) 

Heavy equipment is used at the 'No. 1 Pipe' at Koidu Holdings' kimberlite diamond mine in eastern Sierra Leone, March 2, 2012. Sierra Leone's only pit diamond mine has come far from its origins as wartime booty presented to mercenaries by a grateful military junta. Seventeen years and several changes of ownership later, Koidu Holdings is selling gems in outlets such as U.S. jeweller Tiffany & Co. and considering a possible public listing, which could raise hundreds of millions of dollars to fund expansion. Picture taken March 2, 2012. To match feature SIERRALEONE-DIAMONDS/ REUTERS/Simon Akam (SIERRA LEONE - Tags: ENVIRONMENT BUSINESS CONFLICT CIVIL UNREST) 

Heavy equipment is used in the 'No. 1 Pipe' at Koidu Holdings' kimberlite diamond mine in eastern Sierra Leone, March 2, 2012. Sierra Leone's only pit diamond mine has come far from its origins as wartime booty presented to mercenaries by a grateful military junta. Seventeen years and several changes of ownership later, Koidu Holdings is selling gems in outlets such as U.S. jeweller Tiffany & Co. and considering a possible public listing, which could raise hundreds of millions of dollars to fund expansion. Picture taken March 2, 2012. To match feature SIERRALEONE-DIAMONDS/ REUTERS/Simon Akam (SIERRA LEONE - Tags: ENVIRONMENT BUSINESS CONFLICT CIVIL UNREST) 

A wounded man believed to be a mercenary from Chad lies in a hospital bed after he was captured by anti-Gaddafi forces in Ghadames City near the border with Algeria September 30, 2011. Libyan officials told Reuters that Muammar Gaddafi is believed to be hiding in Ghadames under the protection of Tuareg Tribesmen. REUTERS/Suhaib Salem (LIBYA - Tags: POLITICS CIVIL UNREST CONFLICT MILITARY) 

A wounded man (L), believed to be a mercenary from Chad, lies in a hospital bed after he was captured by anti-Gaddafi forces in Ghadames City near the border with Algeria September 30, 2011. Libyan officials told Reuters that Muammar Gaddafi is believed to be hiding in Ghadames under the protection of Tuareg Tribesmen. REUTERS/Suhaib Salem (LIBYA - Tags: POLITICS CIVIL UNREST CONFLICT MILITARY) 

Africans suspected of being mercenaries and detained by anti-Gaddafi fighters on the outskirts of Sirte, wait to be questioned, at a base in Herawa town, around 70 km (43 miles) east of Sirte, September 28, 2011. Intense sniper and artillery fire from pro-Gaddafi fighters has so far prevented National Transitional Council (NTC) forces from taking Sirte despite more than two weeks of fighting and two full-on assaults. One of Muammar Gaddafi's last two bastions, it has withstood a siege, NTC tank and rocket fire as well as NATO air strikes, and the United Nations and international aid agencies are worried about conditions for civilians trapped inside. REUTERS/Asmaa Waguih (LIBYA - Tags: POLITICS CIVIL UNREST) 

Anti-Gaddafi fighters offer water to who they believe is a captured Gaddafi mercenary 5 kms east of Sirte September 26, 2011. REUTERS/Esam Al-Fetori (LIBYA - Tags: POLITICS CIVIL UNREST) 

Anti-Gaddafi fighters capture what they believe are Gaddafi mercenaries, 5 kms east of Sirte September 26, 2011. REUTERS/Esam Al-Fetori (LIBYA - Tags: POLITICS CIVIL UNREST) 

African refugees sleep in the shade of a fishing boat at a makeshift camp in Sidi Bilal port in the suburbs of Tripoli, September 18, 2011. The camp now houses about 500 Africans, some of thousands in the country who have faced persecution from Libyans who accuse them of having fought as mercenaries for deposed leader Muammar Gaddafi. REUTERS/Anis Mili (LIBYA - Tags: CIVIL UNREST POLITICS) 

Suspected mercenaries working for Muammar Gaddafi are seen in a jail in Tripoli September 14, 2011. REUTERS/Suhaib Salem (LIBYA - Tags: POLITICS CONFLICT) 

Suspected mercenaries working for Muammar Gaddafi talk to an anti-Gaddafi fighter in a jail in Tripoli September 14, 2011. REUTERS/Suhaib Salem (LIBYA - Tags: POLITICS CONFLICT) 

A man of African origin hides in a farm in the outskirts of Tripoli due to fears of being accused of serving as a mercenary for former Libyan leader Muammar Gaddafi August 30, 2011. They have struggled to find food or water due to being in hiding. REUTERS/Zohra Bensemra (LIBYA - Tags: POLITICS CONFLICT MILITARY) 

People of African origin hides in a farm due to fears of being accused of being mercenaries for former Libyan leader Muammar Gaddafi on the outskirts of Tripoli August 30, 2011. They have struggled to find food or water due to being in hiding. REUTERS/Zohra Bensemra (LIBYA - Tags: POLITICS CIVIL UNREST)