A Tamil devotee prays during the Thai Pongal harvest festival at a temple in Colombo January 15, 2016.The Tamil festival of Thai Pongal is a thanksgiving ceremony in which the farmers thank the spirits of nature, the sun and the farm animals for their assistance in providing a successful harvest. REUTERS/Dinuka Liyanawatte TPX IMAGES OF THE DAY

A Tamil ethnic man worships from outside of the Nallur Kovil temple before the start of his day in Jaffna, about 400 kilometers (249 miles) north of Colombo September 22, 2013. REUTERS/Dinuka Liyanawatte (SRI LANKA - Tags: SOCIETY) 

A Tamil woman cries as she holds up an image of her family member who disappeared during the civil war with the Liberation Tigers of Tamil Eelam (LTTE) at a vigil to commemorate the international day of the disappeared in Colombo August 30, 2013. REUTERS/Dinuka Liyanawatte (SRI LANKA - Tags: POLITICS CIVIL UNREST) 

A internally displaced Tamil man bathes at Konappulam Internally Displaced Persons camp in Jaffna, about 400 kilometres (250 miles) north of Colombo August 26, 2013. Sri Lanka battled separatist guerrillas from the minority Tamil community from 1983 until finally defeating them in 2009. The country has come under international pressure to bring to book those accused of war crimes and boost efforts to reconcile a polarised country. Picture taken August 26, 2013. REUTERS/Dinuka Liyanawatte (SRI LANKA - Tags: POLITICS SOCIETY) 

An internally displaced Tamil girl looks out from a broken iron grill at Konappulam Internally Displaced Persons camp in Jaffna, about 400 kilometres (250 miles) north of Colombo August 26, 2013. Sri Lanka battled separatist guerrillas from the minority Tamil community from 1983 until finally defeating them in 2009. The country has come under international pressure to bring to book those accused of war crimes and boost efforts to reconcile a polarised country. Picture taken August 26, 2013. REUTERS/Dinuka Liyanawatte (SRI LANKA - Tags: POLITICS) 

A Tamil woman cries as she holds up an image of her disappeared family member during the war against Liberation Tigers of Tamil Eelam (LTTE) at a protest in Jaffna, about 400 kilometres (250 miles) north of Colombo August 27, 2013. The demonstration in Jaffna by around 300 relatives of disappeared people and those who had lost lands due to the war was held outside the main library where U.N. Human Rights Commissioner Navi Pillay had a meeting. REUTERS/Dinuka Liyanawatte (SRI LANKA - Tags: POLITICS CIVIL UNREST CONFLICT TPX IMAGES OF THE DAY) 

A Tamil woman collects water from a well on which political posters had been pasted ahead of local government election in Killinochchi July 21, 2011, the first polls in three decade due to a 25-year war ended two years ago. Elections will be held in the North on Saturday. REUTERS/Dinuka Liyanawatte (SRI LANKA - Tags: POLITICS ELECTIONS) 

A Sri Lankan Tamil woman holds up a photograph of her missing son during a protest against the Sri Lankan government in Colombo June 30, 2011. Family members of Tamil people, an ethnic minority in Sri Lanka, from the North who have disappeared held a protest to demand the release of people who were arrested during the final stages of the Eelam war against the Liberation Tamil Tigers Elam. They also demanded investigations to find people who are still missing since the war started. REUTERS/Dinuka Liyanawatte (SRI LANKA - Tags: CIVIL UNREST POLITICS SOCIETY IMAGES OF THE DAY) 

Tamil devotees pray in front of oil lamps during the Thai Pongal harvest festival at a temple in Colombo January 15, 2011. REUTERS/Dinuka Liyanawatte (SRI LANKA - Tags: SOCIETY RELIGION) 

A Tamil devotee prays during the Thai Pongal harvest festival at a temple in Colombo January 15, 2011. REUTERS/Dinuka Liyanawatte (SRI LANKA - Tags: SOCIETY) 

An ethnic Tamil boy pours water from an open well into containers in a resettlement camp near Vavuniya, 254 km (158 miles) north of Colombo, December 22, 2009. The Tamil civilians from this village were resettled by the government two months ago after they were displaced due to fighting during the 30-year war. REUTERS/Andrew Caballero-Reynolds (SRI LANKA - Tags: CIVIL UNREST POLITICS SOCIETY) 

Sibesen Gines, 25, an ethnic Tamil, ties part of a roof onto a new structure in a resettlement camp near Vavuniya, 254 km (158 miles) north of Colombo, December 22, 2009. The Tamil civilians from this village were resettled by the government two months ago after they were displaced due to fighting during the 30-year war. REUTERS/Andrew Caballero-Reynolds (SRI LANKA - Tags: CIVIL UNREST POLITICS SOCIETY) 

A Tamil man cooks food in large pots for some of the civilians at the Manik Farm refugee camp located on the outskirts of the northern Sri Lankan town of Vavuniya May 26, 2009. U.N. Secretary-General Ban Ki-moon toured Sri Lanka's largest war refugee camp, located on the outskirts of Vavuniya called Manik Farm and home to 220,000 refugees, on Saturday, pressing for wider humanitarian access to the camps which have become overcrowded since the government declared victory over the Tamil Tiger rebels in a 25-year war. Picture taken May 26, 2009. REUTERS/David Gray (SRI LANKA MILITARY CONFLICT POLITICS SOCIETY) 

A Tamil woman sits on the ground in the Manik Farm refugee camp located on the outskirts of northern Sri Lankan town of Vavuniya May 26, 2009. U.N. Secretary-General Ban Ki-moon toured Sri Lanka's largest war displaced persons camp on Saturday during a trip to press for wider humanitarian access and political reconciliation. REUTERS/David Gray (SRI LANKA MILITARY CONFLICT POLITICS SOCIETY) 

A Tamil mother kneels with her children on a dirt bank as they wait to receive water in the Manik Farm refugee camp located on the outskirts of the northern Sri Lankan town of Vavuniya May 26, 2009. U.N. Secretary-General Ban Ki-moon toured Sri Lanka's largest war displaced persons camp on Saturday during a trip to press for wider humanitarian access and political reconciliation. REUTERS/David Gray (SRI LANKA MILITARY CONFLICT POLITICS SOCIETY) 

Tamil civilians stand in line to collect water in the Manik Farm refugee camp located on the outskirts of northern Sri Lankan town of Vavuniya May 26, 2009. U.N. Secretary-General Ban Ki-moon toured Sri Lanka's largest war displaced persons camp on Saturday during a trip to press for wider humanitarian access and political reconciliation. REUTERS/David Gray (SRI LANKA MILITARY CONFLICT POLITICS SOCIETY) 

A Tamil woman lies on the ground between beds, with a saline drip hanging from her arm, as U.N. Secretary-General Ban Ki-moon is given a tour of a field hospital in the refugee camp called Manik Farm on the outskirts of the northern Sri Lankan town of Vavuniya May 23, 2009. Ban toured Sri Lanka's largest war refugee camp named Manik Farm, home to 220,000 refugees, in the north of the country on Saturday during a trip to press for wider humanitarian access and political reconciliation, and is the highest-level international visit Sri Lanka since the government declared victory on Monday over the Tamil Tiger rebels in a 25-year war. REUTERS/Louis Charbonneau (SRI LANKA CONFLICT MILITARY POLITICS SOCIETY) 

Demonstrators protesting against Sri Lanka's government wear masks and mock bandages at a rally in Sydney May 23, 2009. A heavy police presence accompanied about 1,000 pro-Tamil protesters who halted traffic as they marched through central Sydney. REUTERS/Tim Wimborne (AUSTRALIA CONFLICT POLITICS IMAGES OF THE DAY) 

Pro-Tamil demonstrators beat a picture of Sri Lankan President Mahinda Rajapaksa with shoes, in front of the Houses of Parliament in London May 18, 2009. Tamils and their supporters demonstrating outside Britain's parliament on Monday refused to believe that Sri Lanka's long civil war was over or that separatist Tamil Tiger rebels were defeated. REUTERS/Luke MacGregor (BRITAIN CONFLICT POLITICS) 

Pro-Tamil demonstrators face police after blocking a road in front of the Houses of Parliament in London May 18, 2009. Sri Lanka declared total victory on Monday in one of the world's most intractable wars, after killing the separatist Tamil Tigers' leader and taking control of the entire country for the first time since 1983. REUTERS/Luke MacGregor (BRITAIN CONFLICT POLITICS) 

Pro-Tamil demonstrators scuffle with police after blocking a road in front of the Houses of Parliament in London May 18, 2009. Sri Lanka declared total victory on Monday in one of the world's most intractable wars, after killing the separatist Tamil Tigers' leader and taking control of the entire country for the first time since 1983. REUTERS/Luke MacGregor (BRITAIN CONFLICT POLITICS IMAGES OF THE DAY) 

A Sri Lankan Tamil man reads a newspaper outside a Hindu Temple in Colombo May 16, 2009. REUTERS/Buddhika Weerasinghe (SRI LANKA SOCIETY RELIGION) 

Thousands of Tamil protesters demonstrate at Queens Park in Toronto May 13, 2009, to protest the conflict between the Sri Lankan government and the Liberation Tigers of Tamil Eelam (LTTE). REUTERS/Mark Blinch (CANADA CONFLICT POLITICS) 

A distressed Tamil demonstrator hugs her children after being taken out of a protest in Parliament Square in London May 11, 2009. Tamil demonstrators blocked streets around Westminster to protest against the conflict in Sri Lanka. REUTERS/Andrew Winning (BRITAIN CONFLICT POLITICS) 

A Tamil demonstrator is manhandled by a police officer as he gets arrested during a protest in Parliament Square in London May 11, 2009. Tamil demonstrators blocked streets around Westminster to protest against the conflict in Sri Lanka. REUTERS/Andrew Winning (BRITAIN POLITICS CONFLICT) 

A distressed Tamil demonstrator and her children are taken out of a protest in Parliament Square in London May 11, 2009. Tamil demonstrators blocked streets around Westminster to protest against the conflict in Sri Lanka. REUTERS/Andrew Winning (BRITAIN POLITICS CONFLICT) 

Pro-Tamil demonstrators protest against the conflict in Sri Lanka at the White House in Washington May 11, 2009. REUTERS/Joshua Roberts (UNITED STATES POLITICS CONFLICT) 

A pro-Tamil demonstrator carrying a child talks to a police officer during a protest in Parliament Square in London May 11, 2009. Tamil demonstrators blocked streets around Westminster to protest against the conflict in Sri Lanka. REUTERS/Andrew Winning (BRITAIN) 

A pro-Tamil demonstrator is helped by a police medic during a protest in Parliament Square, in London May 11, 2009. Pro-Tamil demonstrators blocked streets around Westminster to protest against the conflict in Sri Lanka. REUTERS/Andrew Winning (BRITAIN CONFLICT POLITICS) 

Police officers shout at pro-Tamil demonstrators during a protest in Parliament Square in London May 11, 2009. REUTERS/Stefan Wermuth (BRITAIN CONFLICT POLITICS) 

Tamil men who said they are more than 100 years old eat their food rations at a temporary shelter in the Samanagkulam school located on the outskirts of the town of Vavuniya in northern Sri Lanka May 11, 2009. The United Nations said a weekend attack in Sri Lanka that killed hundreds was the bloodbath it had feared, while the Tamil Tigers and government traded blame ahead of U.N. Security Council talks over the war. In the latest reported assault on civilians trapped in the war zone, at least hundreds of people were reported killed on Sunday in an artillery barrage that struck the less than 5 square km (2 square miles) the separatist rebels control. REUTERS/Stringer (SRI LANKA MILITARY CONFLICT POLITICS) 

A Tamil civilian who said she is more than 100 years old eats food at a temporary shelter in the Samanagkulam school located on the outskirts of the town of Vavuniya in northern Sri Lanka May 11, 2009. The United Nations said a weekend attack in Sri Lanka that killed hundreds was the bloodbath it had feared, while the Tamil Tigers and government traded blame ahead of U.N. Security Council talks over the war. In the latest reported assault on civilians trapped in the war zone, at least hundreds of people were reported killed on Sunday in an artillery barrage that struck the less than 5 square km (2 square miles) the separatist rebels control. REUTERS/Stringer (SRI LANKA MILITARY CONFLICT POLITICS) 

Tamil protesters block the road outside the Houses of Parliament in London May 11, 2009. The United Nations said a weekend attack in Sri Lanka that killed hundreds was the bloodbath it had feared, while the Tamil Tigers and government traded blame ahead of U.N. Security Council talks over the war. REUTERS/Stephen Hird (BRITAIN CONFLICT POLITICS IMAGES OF THE DAY) 

Tamil protesters block the Gardiner Expressway, a major freeway going through the middle of downtown Toronto May 10, 2009, to protest the conflict between the Sri Lankan government and the Liberation Tigers of Tamil Elam (LTTE). REUTERS/Mark Blinch (CANADA CONFLICT POLITICS) 

Tamil civilians stand next to their huts in a refugee camp located on the outskirts of the town of Vavuniya in northern Sri Lanka May 6, 2009. Sri Lanka said on Wednesday it had invited U.N Secretary-General Ban Ki-Moon to visit camps where 200,000 people are being held after fleeing the closing battles of the island nation's war against Tamil Tiger separatists. The Liberation Tigers of Tamil Eelam (LTTE) meanwhile urged the United Nations to escort a ship full of aid, organised by sympathisers in the Tamil diaspora in Britain, into the war zone to stave off what it said was looming starvation. Picture taken May 6, 2009. REUTERS/Stringer (SRI LANKA MILITARY CONFLICT POLITICS IMAGES OF THE DAY) 

Tamil men and women who have lost their legs sit in a waiting area at the main hospital in the town of Vavuniya in northern Sri Lanka May 6, 2009. A pro-rebel website accused Sri Lanka's military of killing 64 people on Saturday by shelling a makeshift hospital inside the last scrap of land held by the Tamil Tiger guerrillas. The military denied the report and said the Liberation Tigers of Tamil Eelam (LTTE) may have set off explosions near the hospital. Sri Lanka has disregarded heavy Western pressure to call a truce to protect tens of thousands of civilians trapped by the LTTE in the war zone, a 5-square km (2-sq mile) strip of coast. REUTERS/Stringer (SRI LANKA CONFLICT MILITARY HEALTH) 

A Tamil woman, with a wooden prosthetic leg, lies on the ground with her young baby near an entrance to the main hospital in the town of Vavuniya in northern Sri Lanka May 5, 2009. The Sri Lankan military denied a report on Saturday by a pro-rebel website of killing 64 people by shelling a makeshift hospital inside the last scrap of land held by the the Liberation Tigers of Tamil Eelam (LTTE), saying the rebels may have set off explosions near the hospital. Sri Lanka has disregarded heavy Western pressure to call a truce to protect tens of thousands of civilians trapped by the LTTE in the war zone, a 5-square km (2-sq mile) strip of coast. REUTERS/Stringer (SRI LANKA CONFLICT MILITARY HEALTH POLITICS) 

A Tamil civilian lies on the ground near an entrance to the main hospital in the town of Vavuniya in northern Sri Lanka May 5, 2009. The Sri Lankan military denied a report on Saturday by a pro-rebel website of killing 64 people by shelling a makeshift hospital inside the last scrap of land held by the the Liberation Tigers of Tamil Eelam (LTTE), saying the rebels may have set off explosions near the hospital. Sri Lanka has disregarded heavy Western pressure to call a truce to protect tens of thousands of civilians trapped by the LTTE in the war zone, a 5-square km (2-sq mile) strip of coast. REUTERS/Stringer (SRI LANKA CONFLICT MILITARY HEALTH POLITICS) 

A mother and her child stand in a line with other Tamil civilians in a refugee camp located on the outskirts of the town of Vavuniya in northern Sri Lanka May 4, 2009. The Sri Lankan military denied a report on Saturday by a pro-rebel website of killing 64 people by shelling a makeshift hospital inside the last scrap of land held by the the Liberation Tigers of Tamil Eelam (LTTE), saying the rebels may have set off explosions near the hospital. Sri Lanka has disregarded heavy Western pressure to call a truce to protect tens of thousands of civilians trapped by the LTTE in the war zone, a 5-square km (2-sq mile) strip of coast. REUTERS/Stringer (SRI LANKA MILITARY CONFLICT POLITICS IMAGES OF THE DAY) 

A young Tamil boy stands behind a barbed-wire fence in the Menikfam Vanni refugee camp located near the town of Chettekulam in northern Sri Lanka May 1, 2009. U.N. Security Council members see no point withholding an IMF loan or taking other steps to punish Sri Lanka, the council's president said, the same day Sri Lanka's president rejected international calls for a ceasefire with rebels. Colombo has been under fresh pressure this week, from the European Union among others, to allow a truce so civilians trapped in the tiny area the Tamil Tigers still hold can escape. REUTERS/Stringer (SRI LANKA MILITARY CONFLICT POLITICS) 

Tamils demonstrate on a downtown street, as police begin to push them back after days of protesting against the political turmoil in Sri Lanka, in Toronto April 29, 2009. REUTERS/Mark Blinch (CANADA CONFLICT POLITICS) 

Police watch as Tamils demonstrate in Toronto, April 29, 2009 against the political turmoil in Sri Lanka. REUTERS/Mark Blinch (CANADA CONFLICT POLITICS) 

Firefighters extinguish a truck near Gare du Nord train station where French riot police and Tamil demonstrators clashed at the end of a protest in Paris April 20, 2009. Around 180 people were arrested and four injured in Paris on Monday during an unauthorised protest by Tamils that turned violent, a police spokesman said. Expatriate Tamils have been demonstrating around the world against the Sri Lankan government's conduct of the war against Tamil Tiger rebels. REUTERS/Gonzalo Fuentes (FRANCE CONFLICT IMAGE OF THE DAY TOP PICTURE) 

Demonstrators form a human pyramid during a protest in parliament square in London April 7, 2009. Hundreds of Tamil demonstrators protested outside Britain's parliament on Tuesday calling for London's help in securing a ceasefire between Sri Lankan forces and Tamil Tiger separatists. REUTERS/Luke MacGregor (BRITAIN CONFLICT SOCIETY IMAGE OF THE DAY TOP PICTURE) 

Tamil demonstrators protest in parliament square in London April 7, 2009. Hundreds of Tamil demonstrators protested outside Britain's parliament on Tuesday calling for London's help in securing a ceasefire between Sri Lankan forces and Tamil Tiger separatists. REUTERS/Andrew Parsons (BRITAIN POLITICS SOCIETY CONFLICT) 

Canadian Tamil demonstrator Surendran Mahendran protests against the political turmoil in Sri Lanka, on a downtown street in Toronto March 16, 2009. REUTERS/Mark Blinch (CANADA CONFLICT POLITICS) 

Tamil protestors hold banners in central Brussels during a demonstration to protest against Sri Lanka's military offensives in territories held by Tamil Tigers, March 16, 2009. The United Nations said on Monday Tamil Tiger rebels forcibly recruited another of its local workers in Sri Lanka's war zone along with three dependents of U.N. staff, including a 16-year-old girl. The UN said the forced conscriptions came at the weekend, when nearly 2,000 people fled Sri Lanka's shrinking war zone as troops fought towards the final showdown in a 25-year war with the separatist Tamil Tigers. REUTERS/Francois Lenoir (BELGIUM CONFLICT POLITICS) 

Tamil people, who escaped Tamil Tigers rebels-held area following fighting between Sri Lanka army and Tamil Tigers, chat with their relatives over the fence of a temporary refugee camp in Vavuniya, northern Sri Lanka February 23, 2009. Since the beginning of the year, over 35,000 Tamils have fled to government-controlled areas following fighting and been placed in refugee camps. However, these refugees complain that they are not able to leave the camps, a temporary measure the government says will continue until they can weed out the rebels' infiltrators hiding among civilians. REUTERS/Nir Elias (SRI LANKA) 

A Tamil man, who escaped the Tamil Tigers rebels-held area following fighting between Sri Lanka army and Tamil Tigers, takes a shower in a temporary refugee camp in Vavuniya, northern Sri Lanka February 23, 2009. Since the beginning of the year, over 35,000 Tamils have fled to government-controlled areas following fighting and been placed in refugee camps. However, these refugees complain that they are not able to leave the camps, a temporary measure the government says will continue until they can weed out the rebels' infiltrators hiding among civilians. REUTERS/Nir Elias (SRI LANKA) 

Tamil boys, who escaped a Tamil Tigers rebel-held area following fighting between Sri Lanka army and Tamil Tigers, play cricket at a temporary refugee camp in Vavuniya, northern Sri Lanka February 23, 2009. Since the beginning of the year, over 35,000 Tamils have fled to government-controlled areas following fighting and been placed in refugee camps. However, these refugees complain that they are not able to leave the camps, a temporary measure the government says will continue until they can weed out the rebels' infiltrators hiding among civilians. REUTERS/Nir Elias (SRI LANKA) 

A Tamil man, who escaped a Tamil Tigers rebel-held area following fighting between Sri Lanka army and Tamil Tigers, gets ready to take a shower at a temporary refugee camp in Vavuniya, northern Sri Lanka February 23, 2009. Since the beginning of the year, over 35,000 Tamils have fled to government-controlled areas following fighting and been placed in refugee camps. However, these refugees complain that they are not able to leave the camps, a temporary measure the government says will continue until they can weed out the rebels' infiltrators hiding among civilians. REUTERS/Nir Elias (SRI LANKA) 

A Tamil boy, who escaped Tamil Tigers rebel-held area following fighting between Sri Lanka army and Tamil Tigers, looks at a temporary refugee camp in Vavuniya, northern Sri Lanka February 23, 2009. Since the beginning of the year, over 35,000 Tamils have fled to government-controlled areas following fighting and been placed in refugee camps. However, these refugees complain that they are not able to leave the camps, a temporary measure the government says will continue until they can weed out the rebels' infiltrators hiding among civilians. REUTERS/Nir Elias (SRI LANKA) 

A Tamil woman, who escaped Tamil Tigers rebels-held area following fighting between Sri Lanka army and Tamil Tigers, fixes her hair in a classroom at a temporary refugee camp in Vavuniya, northern Sri Lanka February 23, 2009. Since the beginning of the year, over 35,000 Tamils have fled to government-controlled areas following fighting and been placed in refugee camps. However, these refugees complain that they are not able to leave the camps, a temporary measure the government says will continue until they can weed out the rebels' infiltrators hiding among civilians. REUTERS/Nir Elias (SRI LANKA) 

A Tamil boy, who escaped Tamil Tigers rebels held area following fighting between the Sri Lankan army and Tamil Tigers, sleeps on a mat in a temporary refugee camp in Vavuniya, northern Sri Lanka February 23, 2009. REUTERS/Nir Elias (SRI LANKA) 

Canadian Tamils demonstrate on a downtown street in Toronto, January 30, 2009. Pressure rose on Friday for Sri Lanka and the Tamil Tiger rebels to free thousands of people trapped in the war zone, after the president pledged safe passage and urged the rebels to let people move over the next two days. REUTERS/Peter Jones (CANADA) 

Tamil Hindu priests carry a statue of their god around the temple during the celebration of the Thai Pongal festival in Colombo January 14, 2009. Pongal in Tamil means "boiling or spilling over." The boiling over of milk in a clay pot in the early morning denotes future prosperity for the family. Newly harvested rice, jaggery (unrefined sugar) and nuts are boiled with the milk and this is later served to people. REUTERS/Buddhika Weerasinghe (SRI LANKA) 

An ethnic Tamil woman pray at a Hindu temple in Colombo September 21, 2008. REUTERS/Anuruddha Lokuhapuarachchi (SRI LANKA)