Supporters of Former prime minister and presidential candidate Cellou Dalein Diallo of the Union des forces democratiques de Guinee (UFDG) complain to security forces during a confrontation with partisans of Guinea's outgoing president, leader of Rassemblement du Peuple de Guinea (RPG) on a main road during the electoral rally of UFDG in Conacry, October 8, 2015. Guinea will hold its presidential election on Sunday. REUTERS/Luc Gnago

Supporters of Former prime minister and presidential candidate Cellou Dalein Diallo of the Union des forces democratiques de Guinee (UFDG) shout during the confrontation with partisans of Guinea's outgoing president, leader of Rassemblement du Peuple de Guinea (RPG) on a main road during the electoral rally of UFDG in Conacry, October 8, 2015. Guinea will hold its presidential election on Sunday. REUTERS/Luc Gnago 

Supporters of Former prime minister and presidential candidate Cellou Dalein Diallo of the Union des forces democratiques de Guinee (UFDG) run during a confrontation with partisans of Guinea's outgoing president, leader of Rassemblement du Peuple de Guinea (RPG) on a main road during the electoral rally of UFDG in Conacry, October 8, 2015. Guinea will hold its presidential election on Sunday. REUTERS/Luc Gnago 

A poster of Guinea's outgoing president and presidential candidate Alpha Conde, leader of Rassemblement du Peuple de Guinea (RPG) is seen at a junction of Kaloum in Conakry, October 8, 2015. Guinea will hold its presidential election on Sunday. REUTERS/Luc Gnago

A poster of Guinea's outgoing president and presidential candidate Alpha Conde, leader of Rassemblement du Peuple de Guinea (RPG) is seen at a junction of Kaloum in Conakry, October 8, 2015. Guinea will hold its presidential election on Sunday. REUTERS/Luc Gnago

A poster of Guinea's outgoing president and presidential candidate Alpha Conde, leader of Rassemblement du Peuple de Guinea (RPG) is seen at a junction of Kaloum in Conakry, October 8, 2015. Guinea will hold its presidential election on Sunday. REUTERS/Luc Gnago

People walk next to a campaign poster of Guinea's outgoing president and presidential candidate Alpha Conde, leader of Rassemblement du Peuple de Guinea (RPG) at a junction of Kaloum in Conakry, October 8, 2015. Guinea will hold its presidential election on Sunday. REUTERS/Luc Gnago

Guinea's outgoing president and presidential candidate Alpha Conde, leader of Rassemblement du Peuple de Guinea (RPG), attends the inauguration ceremony of the passenger harbor of Sandervalia in Conakry October 8, 2015. Guinea will hold its presidential election on Sunday. REUTERS/Luc Gnago 

Guinea's outgoing president and presidential candidate Alpha Conde, leader of Rassemblement du Peuple de Guinea (RPG), attends the inauguration ceremony of the passenger harbor of Sandervalia in Conakry October 8, 2015. Guinea will hold its presidential election on Sunday. REUTERS/Luc Gnago 

Guinea's outgoing president and presidential candidate Alpha Conde, leader of Rassemblement du Peuple de Guinea (RPG), attends the inauguration ceremony of the passenger harbor of Sandervalia in Conakry October 8, 2015. Guinea will hold its presidential election on Sunday. REUTERS/Luc Gnago 

A supporter of Guinea's outgoing president and presidential candidate Alpha Conde, leader of Rally for the People of Guinea (RPG), stands in front of a campaign banner during the inauguration ceremony of the passenger harbor of Sandervalia in Conakry October 8, 2015. Guinea will hold its presidential election on Sunday. The banner reads, "Presidential 2015 already won". REUTERS/Luc Gnago

A supporter of Guinea's outgoing president and presidential candidate Alpha Conde, leader of Rally for the People of Guinea (RPG), dance during the inauguration ceremony of the passenger harbor of Sandervalia in Conakry October 8, 2015. Guinea will hold its presidential election on Sunday. REUTERS/Luc Gnago

Guinea's outgoing president and presidential candidate Alpha Conde, leader of Rally for the People of Guinea (RPG), waves as he arrives at inauguration ceremony of the passenger harbor of Sandervalia in Conakry October 8, 2015. Guinea will hold its presidential election on Sunday. REUTERS/Luc Gnago

Guinea's outgoing president and presidential candidate Alpha Conde, leader of Rassemblement du Peuple de Guinea (RPG), waves as he arrives at an inauguration ceremony of the passenger harbor of Sandervalia in Conakry October 8, 2015. Guinea will hold its presidential election on Sunday. REUTERS/Luc Gnago

Guinea's outgoing president and presidential candidate Alpha Conde, leader of Rally for the People of Guinea (RPG), waves as he arrives at an inauguration ceremony of the passenger harbor of Sandervalia in Conakry October 8, 2015. Guinea will hold its presidential election on Sunday. REUTERS/Luc Gnago

Guinea's outgoing president and presidential candidate Alpha Conde, leader of Rally for the People of Guinea (RPG), waves as he arrives at an inauguration ceremony of the passenger harbor of Sandervalia in Conakry October 8, 2015. Guinea will hold its presidential election on Sunday. REUTERS/Luc Gnago

Guinea's outgoing president and presidential candidate Alpha Conde, leader of Rally for the People of Guinea (RPG), waves as he arrives at an inauguration ceremony of the passenger harbor of Sandervalia in Conakry October 8, 2015. Guinea will hold its presidential election on Sunday. REUTERS/Luc Gnago

Members of Saudi security forces take part in a military parade in preparation for the annual Haj pilgrimage in the holy city of Mecca September 17, 2015. REUTERS/Ahmad Masood 

Members of Saudi security forces take part in a military parade in preparation for the annual Haj pilgrimage in the holy city of Mecca September 17, 2015. REUTERS/Ahmad Masood 

Members of Saudi security forces take part in a military parade in preparation for the annual Haj pilgrimage in the holy city of Mecca September 17, 2015. REUTERS/Ahmad Masood 

A rebel fighter fires a weapon towards forces loyal to Syria's President Bashar al-Assad in Aleppo's Sheikh Saeed neighbourhood May 24, 2015. Picture taken May 24, 2015. REUTERS/Hosam Katan TPX IMAGES OF THE DAY

A rebel fighter gestures as he shoots his weapon during clashes with forces loyal to Syria's President Bashar al-Assad on the frontline of Aleppo's Sheikh Saeed neighbourhood May 23, 2015. Rebel fighters from Al-Fawj al-Awal, al-Safwa battalions and group 101 brigades, that are part of the Free Syrian Army, made advances against forces loyal to Syria's President Bashar al-Assad during Aleppo Intifada battles, they said. Picture taken May 23, 2015. REUTERS/Hosam Katan

TPX IMAGES OF THE DAY

A member of Palestinian security forces prepares to fire a rocket-propelled grenade (RPG) as smoke rises during a military graduation ceremony in Gaza City May 21, 2015. REUTERS/Suhaib Salem

A soldier carries a RPG at a street in Bujumbura, Burundi May 15, 2015. Burundian forces arrested the leader of a failed coup on Friday and President Pierre Nkurunziza returned to the capital, his spokesman said, but protesters pledged to go back to the streets, setting the stage for more clashes. REUTERS/Goran Tomasevic 

A soldier carries a RPG in a street in Bujumbura, Burundi May 15, 2015. Burundian forces arrested the leader of a failed coup on Friday and President Pierre Nkurunziza returned to the capital, his spokesman said, but protesters pledged to go back to the streets, setting the stage for more clashes. REUTERS/Goran Tomasevic 

A soldier, loyal to President Pierre Nkurunziza, smiles as he holds a RPG near the body of a soldier (not pictured), loyal to the coup leader, at a street in Bujumbura, Burundi, May 14, 2015. The head of Burundi's army said on Thursday that an attempted coup had failed and forces loyal to President Pierre Nkurunziza were in control but heavy gunfire in the capital suggested the battle for power was not yet over. REUTERS/Goran Tomasevic 

A Jaysh al-Islam (Army of Islam) rebel fighter carries an RPG at the Tal-Kurdi frontline in the Eastern Ghouta of Damascus, May 10, 2015. Jaysh al-Islam (Army of Islam) fighters said that this was an operation to take control of the highway connecting Damascus to Homs, and that they have made advances in Tal-Kurdi. REUTERS/Amer Almohibany

A member of a Female Commando Battalion which is part of the Syrian Army, carries an RPG as she walks with Syrian Army members inside a building in the government-controlled area of Jobar, a suburb of Damascus March 19, 2015. This Battalion consists of several hundred female fighters who have had military training and carry out combat duties. Picture taken during a Syrian Army organised trip. REUTERS/Omar Sanadiki

A Libya Dawn fighter shoulders a rocket-propelled grenade (RPG) launcher at a checkpoint near Sirte March 17, 2015. The Libya Dawn armed group backs the self-declared government in the capital Tripoli. Islamic State has been exploiting the turmoil in Libya, where the internationally recognised government of Libyan Prime Minister Abdullah al-Thinni and the administration in Tripoli and their respective allies are fighting for power. REUTERS/Goran Tomasevic (LIBYA - Tags: CIVIL UNREST POLITICS MILITARY) 

A Libya Dawn fighter runs with a rocket-propelled grenade (RPG) launcher as he searches with other fighters for Islamic State militants near Sirte March 17, 2015. The Libya Dawn armed group backs the self-declared government in the capital Tripoli. Islamic State has been exploiting the turmoil in Libya, where the internationally recognised government of Libyan Prime Minister Abdullah al-Thinni and the administration in Tripoli and their respective allies are fighting for power. REUTERS/Goran Tomasevic (LIBYA - Tags: CIVIL UNREST POLITICS MILITARY) 

A fighter from Misrata carries a rocket-propelled grenade (RPG) near Sirte March 15, 2015. REUTERS/Goran Tomasevic (LIBYA - Tags: CIVIL UNREST) 

A fighter from Misrata carries a rocket-propelled grenade (RPG) near positions of Islamic State militants, near Sirte March 15, 2015. Militants loyal to Islamic State, the group which has seized much of Iraq and Syria, have established a larger presence in central Libya in recent weeks. Islamic State, which analysts say is splintered into smaller factions in Libya, has sought to exploit turmoil in the major oil producer where two rival governments and their respective allies fight for power. REUTERS/Goran Tomasevic (LIBYA - Tags: CIVIL UNREST POLITICS) 

Kurdish People's Protection Units (YPG) fighters take positions behind a sand barricade as one of them aims an RPG towards Islamic State fighters' position in the western countryside of Ras al-Ain March 10, 2015. Picture taken March 10, 2015. REUTERS/Rodi Said (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT MILITARY) 

A Houthi fighter holds a rocket-propelled grenade (RPG) as he rides on the back of a patrol truck in Sanaa March 6, 2015. Yemen has plunged deeper into turmoil since the Iranian-backed Shi'ite Muslim Houthi group seized control of the capital in September last year. REUTERS/Khaled Abdullah (YEMEN - Tags: CIVIL UNREST POLITICS) 

A volunteer of the separatist self-proclaimed Donetsk People's Republican guard fires a rocket-propelled grenade (RPG) during shooting training in Donetsk March 1, 2015.
REUTERS/Baz Ratner (UKRAINE - Tags: POLITICS CIVIL UNREST CONFLICT MILITARY) 

A volunteer of the separatist self-proclaimed Donetsk People's Republican guard fires a rocket-propelled grenade (RPG) during shooting training in Donetsk March 1, 2015.
REUTERS/Baz Ratner (UKRAINE - Tags: POLITICS CIVIL UNREST CONFLICT MILITARY) 

Volunteers of the separatist self-proclaimed Donetsk People's Republican guard fire a rocket-propelled grenade (RPG) during shooting training in Donetsk March 1, 2015.
REUTERS/Baz Ratner (UKRAINE - Tags: POLITICS CIVIL UNREST CONFLICT MILITARY) 

Volunteers of the separatist self-proclaimed Donetsk People's Republican guard load a rocket-propelled grenade (RPG) during shooting training in Donetsk March 1, 2015.
REUTERS/Baz Ratner (UKRAINE - Tags: POLITICS CIVIL UNREST CONFLICT MILITARY) 

A Chadian soldier rides atop a pickup truck next to a bag of rocket-propelled grenades in Gambaru, Nigeria, February 26, 2015. Niger, Cameroon and Chad have launched a regional military campaign to help Nigeria defeat the Boko Haram insurgency, which aims to carve an Islamic emirate out of northeastern Nigeria. Chad deployed troops last month and is leading efforts to stop repeated cross-border raids by the Islamists, whose operations increasingly threaten Nigeria's neighbours. Picture taken February 26, 2015. REUTERS/Emmanuel Braun (NIGERIA - Tags: POLITICS MILITARY CIVIL UNREST CONFLICT) 

Kurdish Peshmerga fighters inspect an rocket-propelled grenade (RPG) launcher as they take control of the area, on the outskirts of Mosul February 6, 2015. REUTERS/Ari Jalal (IRAQ - Tags: CIVIL UNREST CONFLICT MILITARY POLITICS) 

Shi'ite fighters, who have joined the Iraqi army to fight against militants of the Islamic State, take part in field training in the desert in the province of Kerbala, January 29, 2015. REUTERS/Mushtaq Muhammed (IRAQ - Tags: CIVIL UNREST CONFLICT POLITICS MILITARY) 

A female fighter of the Kurdish People's Protection Units (YPG) fires a Rocket-propelled grenade (RPG) as she participates in a military training in the western countryside of Ras al-Ain January 25, 2015. Picture taken January 25, 2015. REUTERS/Rodi Said (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT) 

A personnel of pro-government Libyan forces, who are backed by locals, holds a rocket-propelled grenade (RPG) during clashes in the streets with the Shura Council of Libyan Revolutionaries, an alliance of former anti-Gaddafi rebels, who have joined forces with the Islamist group Ansar al-Sharia, in Benghazi December 28, 2014. REUTERS/Esam Omran Al-Fetori (LIBYA - Tags: CIVIL UNREST POLITICS) 

A masked man carries a rocket-propelled grenade (RPG) while manning a checkpoint in Bazalia village, home of Lebanese soldier Ali al-Bazzal who was killed by Nusra Front, on a road that links Arsal to Baalbek December 6, 2014. Syria's al Qaeda offshoot Nusra said on Friday it killed captive Lebanese soldier al-Bazzal in retaliation for the arrest by Lebanese authorities of women identified as wives of Islamist militants. The soldier was one of more than two dozen members of the security forces taken captive by militants affiliated to the Nusra Front and Islamic State when they staged an attack on the Lebanese border town of Arsal in August. REUTERS/Ahmad Shalha (LEBANON - Tags: POLITICS CIVIL UNREST) 

A Shi'ite Houthi rebel holds an RPG as he rides a truck passing through a checkpoint near the Presidential Palace in Sanaa September 24, 2014. The leader of a Shi'ite rebel group on Tuesday hailed the takeover by his fighters of much of the Yemeni capital after four days of fighting last week as a "successful revolution" for all citizens. REUTERS/Khaled Abdullah (YEMEN - Tags: POLITICS CIVIL UNREST MILITARY) 

A Kurdish Peshmerga fighter keeps guard as his colleagues train before deploying to fight the Islamic State, at a temporary military camp near the front line in Gwar, northern Iraq September 22, 2014. REUTERS/Ahmed Jadallah (IRAQ - Tags: CIVIL UNREST CONFLICT TPX IMAGES OF THE DAY) 

A Ukranian soldier from the volunteer battalion Shakhtarsk fires a rocket-propelled grenade (RPG) while attending a training session on the outskirts of the southern coastal town of Mariupol September 15, 2014. REUTERS/Vasily Fedosenko (UKRAINE - Tags: CIVIL UNREST POLITICS MILITARY) 

A Kurdish Peshmerga fighter holds a a rocket-propelled grenade launcher as he takes up position in an area overlooking Baretle village (background), which is controlled by the Islamic State, in Khazir, on the edge of Mosul September 8, 2014. The Kurdish fighters are firing from an area they had retaken from the Islamic State, on Bashiqah mountain. September 8, 2014. REUTERS/Ahmed Jadallah (IRAQ - Tags: CIVIL UNREST CONFLICT TPX IMAGES OF THE DAY) 

A Kurdish peshmerga fighter takes up position with a rocket-propelled grenade (RPG) launcher at the front line against the Islamic State, in Khazir September 7, 2014. Islamic State launched a lightning advance through northern and central Iraq in June, declaring an Islamic caliphate. With the help of U.S. air strikes, Iraq's army and Kurdish forces have been able to push the fighters back from some areas. REUTERS/Ahmed Jadallah (IRAQ - Tags: CIVIL UNREST CONFLICT) 

A Kurdish peshmerga fighter carries an RPG while advancing during clashes with Islamic State (IS) on the front line at Buyuk Yeniga village September 4, 2014. REUTERS/Ahmed Jadallah (IRAQ - Tags: CIVIL UNREST POLITICS MILITARY) 

A Kurdish peshmerga fighter holding an RPG moves to a firing position on the back of a pick-up truck during clashes with Islamic State (IS) on the front line at Buyuk Yeniga village September 4, 2014. REUTERS/Ahmed Jadallah (IRAQ - Tags: CIVIL UNREST POLITICS MILITARY) 

A Kurdish peshmerga fighter fires an RPG at an advancing Islamic State (IS) vehicle during front line clashes at Buyuk Yeniga village, after the village was retaken today September 4, 2014. REUTERS/Ahmed Jadallah (IRAQ - Tags: CIVIL UNREST MILITARY POLITICS TPX IMAGES OF THE DAY) 

A Kurdish peshmerga fighter fires an RPG at an advancing Islamic State (IS) vehicle during front line clashes at Buyuk Yeniga village, after the village was retaken today September 4, 2014. REUTERS/Ahmed Jadallah (IRAQ - Tags: CIVIL UNREST POLITICS MILITARY) 

A member of Ukrainian police special task force "Kiev-1" carries a weapon that was hidden by pro-Russian separatists in the basement of an unfinished house in Slaviansk September 2, 2014. Russian troops are strengthening their positions in eastern Ukraine and using aid shipments to smuggle in arms and other supplies to separatist forces, Kiev's military said on Tuesday. REUTERS/Stanislav Belousov (UKRAINE - Tags: POLITICS CIVIL UNREST MILITARY CONFLICT) 

A Palestinian Islamic Jihad militant holds an RPG during a rally celebrating what the militants say was a victory over Israel following a ceasefire in Gaza City August 29, 2014. An open-ended ceasefire, mediated by Egypt, took effect on Tuesday evening. It called for an indefinite halt to hostilities, the immediate opening of Gaza's blockaded crossings with Israel and Egypt, and a widening of the territory's fishing zone in the Mediterranean. Israel launched an offensive on July 8, with the declared aim of ending rocket fire into its territory. REUTERS/Ibraheem Abu Mustafa (GAZA - Tags: POLITICS CIVIL UNREST CONFLICT) 

A Yazidi fighter who recently joined the Kurdish People's Protection Units (YPG) gestures while securing a road in Mount Sinjar in northern Iraq for displaced people from the Yazidi religious minority fleeing violence from forces loyal to the Islamic State in Sinjar town, as they make their way towards Newrooz camp in Syria's al-Hasakah province August 13, 2014. A U.S. mission to evacuate the Yazidis trapped on the mountain by Sunni militant fighters is far less likely after a U.S. assessment team sent there on Wednesday found the humanitarian situation not as grave as expected, the Pentagon said. Picture taken August 13, 2014. REUTERS/Rodi Said (IRAQ - Tags: POLITICS CIVIL UNREST TPX IMAGES OF THE DAY) CONFLICT) 

A member of Ukrainian self-defence battalion "Donbass" fires a rocket-propelled grenade (RPG) near the town of Pervomaysk July 31, 2014. Ukraine said on Thursday it had suspended offensive operations in its military campaign in east Ukraine to help international experts reach the downed Malaysian airliner's crash site but separatists were continuing to attack its positions. REUTERS/Maks Levin (UKRAINE - Tags: POLITICS CIVIL UNREST MILITARY) 

A rebel fighter fires a weapon towards forces loyal to Syria's President Bashar al-Assad in the town of Morek in Hama province July 20, 2014. Picture taken July 20, 2014. REUTERS/Badi Khlif (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT TPX IMAGES OF THE DAY) 

Pro-Russian separatist fighters from the so-called Battalion Vostok (East) wait behind sandbag walls at a checkpoint on the outskirts of the eastern Ukrainian city of Donetsk, July 10, 2014. Ukrainian forces regained more ground but sustained further casualties on Thursday in clashes with separatists, while two Western allies urged Russia's Vladimir Putin to exert more pressure on the rebels to find a negotiated end to the conflict. REUTERS/Maxim Zmeyev (UKRAINE - Tags: POLITICS CIVIL UNREST MILITARY CONFLICT TPX IMAGES OF THE DAY) 

Ukrainian servicemen carry weapons, seized from pro-Russian separatists, near Slaviansk July 8, 2014. Ukraine's government kept up military pressure against pro-Russian rebels on Tuesday, threatening them with an "nasty surprise", while the militants said they were preparing to fight back after losing their main stronghold. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS CIVIL UNREST MILITARY)