Firemen attempt to extinguish fires during riots in Meikhtila, Myanmar, on March 22, 2013. Unrest between Buddhists and Muslims in central Myanmar has reduced neighborhoods to ashes and stoked fears that last year's sectarian bloodshed is spreading into the country's heartland in a test of Asia's newest democracy.

A riot policeman stands guard next to a burning building in Meikhtila on March 22, 2013. A curfew was imposed for the second night as riots between Buddhists and Muslims continued.

People carry their belongings as they arrive at a temporary rescue center in Meikhtila on March 22, 2013.

Residents sit on a railway track watching buildings burn around a mosque in riot-hit Meikhtila on March 21, 2013.

Burnt houses are seen in Meikhtila on March 21, 2013.

Kenyan police officers detain a man in the Somali district of Eastleigh in Nairobi on Monday.

Angry ethnic Somali youths shout slogans as they face off Kenyan youths during a riot in the predominantly Somali neighborhood of Eastleigh in Nairobi on Monday.

A Kenyan Police officer with a guard dog tries to control a crowd in the Somali district of Eastleigh in Nairobi on Monday. Kenyan residents in Eastleigh turned on Somalis and attacked their shops and stalls, accusing them of being responsible for a bomb on Sunday.

A suspected looter is restrained by a policeman with a dog in the Somali district of Eastleigh in Nairobi on Monday.

A man bleeds after he was attacked with machetes by people of Somali ethnicity on Monday during inter-ethnic clashes in Nairobi's Eastleigh suburb.

Mathare slum residents escape from a cloud of tear gas thrown by the police during the second day of skirmishes in the Eastleigh neighborhood of Kenya's capital Nairobi on November 19, 2012.

A riot policeman fires tear gas during a protest against a new legislation, which allows for the sale of land in Panama's free trade zone of Colon, in Colon City, Panama, Oct. 19, 2012. According to local media, hundreds of demonstrators protested against draft law No. 529, blocking roads and burning tires in the city, claiming that selling the land will affect their jobs and revenue which the Colon free trade zone, one of the largest free ports in the Americas.

A demonstrator burns tires to block a road during a protest in Colon City, Panama, Oct. 19.

A family runs for shelter after tear gas was shot by riots police during a massive protest in Colon City, Panama, Oct. 19.

Police special forces take positions during a protest in Colon City, Panama, Oct. 19.

Nasa Indians charge a soldier in Toribio, southern Colombia on July 17. Dozens of Indians attacked half a dozen soldiers guarding communication towers on the outskirts of the town.

Indigenous natives drag Colombian army sergeant Rodrigo Garcia out of his military post on Mount Berlin in Toribioon July 17, 2012.

Nasa Indians drag off a soldier in Toribio, southern Colombia on July 17.

A soldier tries to stop another from shooting in the air.

A soldier is attacked by indigenous trying to evict them from a military control base in El Alto del Berlin mountain in Toribio, Cauca, Colombia

Army sergeant Rodrigo Garcia leaves with tears in his eyes after he was forced out of his military post on Mount Berlin on July 17, 2012.

Flames engulf a Spanish miner after he poured gas from a bridge on burning tires and wood to cut off road access during a miner's demonstration inside "Pozo Soton" mine in northern Spain on July 4. No information was available on the condition of the miner.

Coal miners fire handmade rockets during a clash with the Spanish national riot police on July 4 at the "Pozo Soton" mine in northern Spain.

Spanish riot policemen fire tear gas to disperse a miners' demonstration in El Entrego, inside "Pozo Soton" near Langreo, northern Spain on July 4.

A miner kicks a gas canister fired by the Spanish national riot police during the clashes between police and miners inside the "Pozo Soton" coal mine in northern Spain on July 4.

Panathinaikos fans hold flares before a Greek Super League soccer match between Panathinaikos and Olympiakos Piraeus at Olympic stadium in Athens on March 18.

Players of Olympiakos and Panathinaikos stand as a flares are being thrown onto the field during a Greek Super League football game against Olympiakos at the Athens Olympic stadium.

Police chase Panathinaikos' fans before a Greek Super League soccer match against Olympiakos at Olympic stadium in Athens on March 18.

A bleeding Panathinaikos' fan is helped by other fans after being injured during a soccer game for the Greek Super League at the Olympic stadium in Athens.

A young supporter of Panathinaikos is carried away from clashes during a Greek Super League football game against Olympiakos at the Athens Olympic stadium.

A soccer fan runs in front of burning seats during a Greek Super League soccer match at Olympic stadium in Athens. The Athens derby between Panathinaikos and Olympiakos Pireaus was abandoned after being interrupted twice by crowd violence on Sunday.

People crowd a train station in Cairo, Egypt waiting for their friends and relatives' arrival from Port Said on Feb. 2, 2012 after the country's worst ever soccer violence. A man, right, carries a poster that reads, "Rest in peace, who is behind this? We are with those who lost their relatives."

An injured man is carried after arriving from Port Said at a train station in Cairo on Feb. 2, 2012.

Soldiers transfer a wounded fan of Al-Ahly upon his arrival in Cairo aboard a military plane on Feb. 2, 2012.

A shoe is seen inside the goal net one day after soccer supporters clashed at the Port Said stadium. Feb. 2, 2012.

Women mourn at a morgue in Cairo on Feb. 2, 2012.

Greek Reuters photographer Yannis Behrakis runs to avoid an exploding stun granade thrown by riot police during violent clashes following an anti austerity protest in Thessaloniki Sept. 10.

Shoppers walk past a Greater Manchester Police advertising board displaying images of people suspected of committing crimes during the recent riots in Manchester, northern England August 12. Police prepared to flood the streets on Friday to ensure that weekend drinking does not reignite the rioting that swept London and other cities this week, shocking Britons and sullying their country's image a year before it hosts the Olympics.

Stafford Blake (C) from Peckham writes a message to put on a looted storefront in Peckham, southeast London August 12, 2011.

A woman looks at a message board in Peckham, south-east London, on August 12, established by a local theater company after the recent riots and looting in the area. British Prime Minister David Cameron says the riots which have scarred England were motivated by pure criminality, but opposition politicians and academics say they also point to social deprivation.

Hundreds of messages of support from the community of Peckham are seen posted on a looted storefront in the south London district on August 10.

A man posts a note on a 'Peace Wall' on a boarded up window of a discount store in Peckham on August 10.