riot

A pro-European integration protester takes cover behind a makeshift shield at the site of clashes with riot police in Kiev January 23, 2014. Ukrainian opposition leaders emerged from crisis talks with President Viktor Yanukovich on Wednesday saying he had failed to give concrete answers to their demands, and told their supporters on the streets to prepare for a police offensive.

David Mdzinarishvili/Reuters

A pro-European integration protester takes cover behind a makeshift shield at the site of clashes with riot police in Kiev, Ukraine. Opposition leaders emerged from crisis talks with President Viktor Yanukovich on Wednesday, saying he had failed to give concrete answers to their demands, and told their supporters on the streets to prepare for a police offensive

Anti-government protests in Ukraine...  KIEV, UKRAINE - JANUARY 20:  This handout photo released by Ukrainian Ministry of Internal Affairs shows burning members of the Ukrainian riot police due to the gasoline bombs hurled by anti-government protestors during the clashes in central Kiev, Ukraine, January 20, 2014. At least 61 people were admitted to hospital and 100 police officers wounded after violent clashes broke out when thousands marched on Kiev's streets to demonstrate against a recently passed anti-protest legislation. (Photo by Ukrainian Ministry of Internal Affairs/Anadolu Agency/Getty Images)

Anadolu Agency/Getty

This photo released by the Ukrainian Ministry of Internal Affairs shows Ukrainian riot police on fire after gasoline bombs were hurled by anti-government protesters during the clashes in central Kiev, Ukraine Read more

Riot police officers block Pro-European Union activists gathered at the Independence Square in Kiev, Ukraine, Monday, Dec. 9, 2013. The policemen, wearing helmets and holding shields, formed a chain across Kiev s main street outside the city building. Organizers called on protesters to vacate the city hall and the other building which the opposition had used as its headquarters.

Efrem Lukatsky/AP

Riot police officers block Pro-EU activists gathered at Independence Square in Kiev, Ukraine. The policemen formed a chain across Kiev’s main street outside the city building.

A man works on a Northern Ireland riot diorama at a model shop in Belfast...A man works on a Northern Ireland riot diorama produced by modelmaker Gareth Hutchinson in his model shop in Belfast October 22, 2013. The pieces are individually handcrafted and the diorama is being displayed for sale in Hutchinson's shop. REUTERS/Cathal McNaughton

Cathal McNaughton/Reuters

A man works on a riot diorama by modelmaker Gareth Hutchinson in his model shop in Belfast, Northern Ireland. Each model in the diorama is individually handcrafted. Read more

Riot police fire rubber bullets at demonstrator during clashes near Guanabara Palace in Rio de Janeiro

Pilar Olivares/Reuters

Riot police fire rubber bullets at demonstrator during clashes near Guanabara Palace where Pope Francis met President Dilma Rousseff in Rio de Janeiro, Brazil, on Monday. Demonstrators are continuing their anti-government protests, which began in June amid growing economic and social dissatisfaction in Brazil.

A protester carries stones in one hand and a beer bottle in the other as he kneels in front of burning tyres set by protesters in front of Luxor governorate building to protest against the newly-appointed governor, Adel Mohamed al-Khayat, who was a member of the militant group, al-Gamaa al-Islamiya, in Luxor, June 19, 2013. Al-Khayat was a member of the militant group blamed for slaughtering 58 tourists in Egypt's Valley of the Queens; today he's promising to keep visitors safe. Khayat's appointment by President Mohamed Mursi as governor of the city of Luxor has triggered howls of protest, with demonstrators protesting for a third day on Wednesday and one critic calling it "the last nail in the coffin of tourism".

Reuters

A protester kneels in front of burning tyres in front of Luxor governorate building to protest against the newly-appointed governor, Adel Mohamed al-Khayat. Read more

Turkish riot police rest in front of a damaged bank at Taksim Square in Istanbul, Turkey, 12 June 2013. Turkish police took up posts 12 June around Taksim Square, a day after continuous clashes in which police tried to clear the central plaza of anti-government protesters. Turkish Prime Minister Recep Tayyip Erdogan was to meet later 12 June with a group of public figures and artists to discuss two weeks of protests against his government.

Tolga Bozoglu/EPA

Turkish riot police rest in front of a damaged bank at Taksim Square in Istanbul, Turkey on Wednesday. Turkish police took up posts around Taksim Square, a day after continuous clashes in which police tried to clear the central plaza of anti-government protesters. Turkish Prime Minister Recep Tayyip Erdogan was to meet later with a group of public figures and artists to discuss two weeks of protests against his government.

Protestors clash with Turkish riot policemen on the way to Taksim Square in Istanbul

Bulent Kilic/Reuters

Protesters clash with Turkish riot policemen on the way to Taksim Square in Istanbul on Wednesday, as part of ongoing protests against the ruling party, police brutality and the destruction of Taksim park for a development project. Turkey’s Islamic-rooted government has apologised to injured protesters and said it had ‘learnt its lesson’ after days of mass street demonstrations that have posed the biggest challenge to Prime Minister Recep Tayyip Erdogan’s decade in office.

A protester sleeps at a bus stop sprayed with graffiti at Taksim Square in Istanbul...A protester sleeps at a bus stop sprayed with graffiti at Taksim Square in Istanbul June 4, 2013. Pockets of protesters clashed with Turkish riot police overnight and a union federation began a two-day strike on Tuesday as anti-government demonstrations in which two people have died stretched into a fifth day. Hundreds of police and protesters have been injured since Friday, when a demonstration to halt construction in a park in an Istanbul square grew into mass protests against a heavy-handed police crackdown and what opponents call Prime Minister Tayyip Erdogan's authoritarian policies.  REUTERS/Stoyan Nenov (TURKEY - Tags: CIVIL UNREST POLITICS)

Stoyan Nenov/Reuters

A protester sleeps at a bus stop sprayed with graffiti at Taksim Square in Istanbul on Tuesday. Pockets of protesters clashed with Turkish riot police overnight and a union federation began a two-day strike on Tuesday as anti-government demonstrations in which two people have died stretched into a fifth day. Hundreds of police and protesters have been injured since Friday, when a demonstration to halt construction in a park in an Istanbul square grew into mass protests against a heavy-handed police crackdown and what opponents call Prime Minister Tayyip Erdogan’s authoritarian policies Read more

Turkish youths relax in Taksim Gezi park...Turkish youths relax in Taksim Gezi park in Istanbul on June 3, 2013 after days of protests against the demolition of the park. Turkish Prime Minister Recep Tayyip Erdogan on June 3 rejected talk of a "Turkish Spring", facing down the sharpest protests in his decade-long rule as fresh clashes erupted between police and demonstrators in Ankara. Taksim Square, where the protests first erupted, was relatively quiet early on June 3 as people started the first workday since tensions boiled over on May 31.  AFP PHOTO / BULENT KILICBULENT KILIC/AFP/Getty Images

Bulent Kilic/AFP

Turkish youths relax in Gezi Park in Istanbul on Monday after five days of protests against the demolition of the park. Read more