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A pro-European protester throws a stone during clashes with Ukrainian riot police in Kiev, on January 19, 2014. Protesters attacked riot police with sticks in Kiev on Sunday and tried to overturn a bus blocking their path to parliament, as up to 100,000 Ukrainians massed in defiance of sweeping new laws aimed at stamping out anti-government demonstrations. (Reuters/Valentyn Ogirenko) Renewed Protests in Ukraine.

Pro-European integration protesters sing an anthem during a rally near government administration buildings in Kiev, on January 20, 2014. (Reuters/Valentyn Ogirenko)

Barricades and protesters' tents in Independence Square in Kiev, where the pro-EU demonstrators held a rally on January 17, 2014. (Reuters/Gleb Garanich)

Protesters attack riot police in central Kiev, on January 19, 2014. A group of radical activists began attacking riot police with sticks, trying to push their way toward the Ukrainian parliament building, which has been cordoned off by rows of police vehicles and buses. (AP Photo/Sergei Chuzavkov)

A pro-European integration protester stands on a barricade with a national flag during a rally in Kiev, on January 20, 2014. (Reuters/Vasily Fedosenko)

A woman watches riot police officers protecting themselves from protesters during an opposition rally in thecenter Kiev, in a show of defiance against strict new curbs on protests, on January 19, 2014. (Sergei Supinsky/AFP/Getty Images)

Opposition leader and former WBC heavyweight boxing champion Vitaly Klitschko (center) speaks to protesters during a pro-European integration rally in Kiev, on January 19, 2014. (Reuters/Gleb Garanich)

Vitaly Klitschko is attacked and sprayed with a fire extinguisher as he tries to stop the clash between police and protesters in Kiev, on January 19, 2014. (AP Photo /Efrem Lukatsky)

Vitaly Klitschko, after being attacked and sprayed with a fire extinguisher as he tried to stop clashes between police and protesters in Kiev, on January 19, 2014. (AP Photo/Efrem Lukatsky)

Pro-European integration protesters attack a police van during a rally near government administration buildings in Kiev, on January 19, 2014. (Reuters/Gleb Garanich)

Ukranian riot police stand behind the wreckage of burned vehicles during clashes with pro-European protesters in Kiev, on January 20, 2014. (Reuters/Gleb Garanich)

Protesters fire at police with fireworks, in central Kiev, on January 20, 2014. (AP Photo/Sergei Grits)

Pro-European integration protesters build a trebuchet to throw stones during clashes with police in Kiev, on January 20, 2014. (Reuters/Vasily Fedosenko)

Protesters use fireworks during clashes with police in central Kiev, on January 21, 2014. (AP Photo/Evgeny Feldman)

Fireworks explode during clashes between police and protesters in central Kiev, on January 20, 2014. (Anatoliy Sepanov/AFP/Getty Images)

A Ukrainian priest passes by a rank of riot police in the center of Kiev, on January 22, 2014. (Vasily Maximov/AFP/Getty Images)

Riot police officers take cover behind shields during clashes with pro-European protesters in Kiev, on January 22, 2014. (Reuters/Maks Levin)

Reporters take pictures during clashes between protesters and police in Kiev, on January 22, 2014. (AP Photo/Efrem Lukatsky)

Pro-European protesters stand in line holding wooden sticks in Kiev, on January 22, 2014. (Reuters/Gleb Garanich)

Helmeted riot police move in on hundreds of protesters in Kiev, on January 22, 2014. (AP Photo/Evgeny Feldman)

Pro-European protesters clash with riot policemen in Kiev, on January 22, 2014. (Reuters/Gleb Garanich)

Police officers drag a protester during clashes in Kiev, on January 22, 2014. (AP Photo/Sergei Grits)

An injured man, during clashes between pro-European protesters and riot police in Kiev, on January 22, 2014. The sign on the helmet reads: "Press". (Reuters/Vasily Fedosenko)

A woman addresses Ukrainian Interior Ministry members who lined up during clashes with pro-European protesters in Kiev, on January 22, 2014. (Reuters/Gleb Garanich)

Ukrainian opposition activists prepare Molotov cocktails for clashes with riot police in central Kiev, on January 21, 2014. (Vasily Maximov/AFP/Getty Images)

A man carries a burning tire during a rally held by pro-European protesters in Kiev, on January 22, 2014. (Reuters/Vasily Fedosenko)

A protester throws a Molotov cocktail toward police in Kiev, on January 22, 2014. (AP Photo/Efrem Lukatsky)

A police officer uses a shotgun during clashes with protesters in Kiev, on January 22, 2014. (AP Photo/Evgeny Feldman)

A protester, left, waits for a moment to clash with riot police officers in Kiev, on January 20, 2014. (AP Photo/Sergei Chuzavkov)

The body of an unidentified man lies in a building near the street where clashes took place in Kiev, on January 22, 2014. Two people have died in clashes between protesters and police in the Ukrainian capital Wednesday, according to medics on the site, in a development that will likely escalate Ukraine's two month-long political crisis. (AP Photo/Yuras Karmanau)

Protesters react as one catches fire during a clash with police in Kiev, on January 22, 2014. (Sergei Supinsky/AFP/Getty Images)

Medics transport an injured protester during protests in Kiev, on January 22, 2014. (AP Photo/Darko Vojinovic)

A protester points a handgun during a battle with police in Kiev, on January 22, 2014. (AP Photo/Efrem Lukatsky)

Protesters aim fireworks at riot police in Kiev, on January 22, 2014. (AP Photo/Sergei Grits)

A protester sprays fire in the direction of the riot police in Kiev, on January 20, 2014. (Sergei Supinsky/AFP/Getty Image

A pro-European protester lies on the ground during a battle with riot police in Kiev, on January 22, 2014. (Reuters/Gleb Garanich)

A protester prepares to throw a Molotov cocktail at police in Kiev, on January 22, 2014. (AP Photo/Evgeny Feldman)

A pro-European integration protester catches fire during clashes in Kiev, on January 20, 2014. (Reuters/Vasily Fedosenko)

An Orthodox priest prays as he stands between pro-European Union activists and police lines during violent demonstrations in Kiev, on January 22, 2014. (AP Photo/Darko Vojinovic)

A demonstrator stands amid burning tires and debris in the center of Kiev, on January 22, 2014. (Sergei Supinsky/AFP/Getty Images)

Police prepare to clash with protesters in central Kiev, on January 22, 2014. (AP Photo/Efrem Lukatsky)

Ukrainian riot police take cover behind their shields in front of a burned bus during a continued protest near government administration buildings in Kiev, on January 20, 2014. (Reuters/Valentyn Ogirenko)

A protester prepares to throw a Molotov cocktail during clashes with the police in Kiev, on January 20, 2014. EU foreign ministers deplored violent protests in Kiev, saying the government was at fault for passing a package of repressive laws in an effort to tame pro-EU demonstrations. (Genya Savilov/AFP/Getty Images)

Protesters clad in improvised protective gear prepare for a battle with police in Kiev, on January 20, 2014. After a night of vicious streets battles, anti-government protesters and police clashed anew Monday in the Ukrainian capital Kiev. (AP Photo/Evgeny Feldman)

Ukrainian Riot police officers shoot rubber bullets and throw a stun grenade at anti-government protesters, on January 20, 2014. (AP Photo/Sergei Grits)

A protester displays rubber bullets and pellets used by police during clashes in Kiev, on January 20, 2014. (Sergei Supinsky/AFP/Getty Images)

A protester reacts after being injured by a rubber bullet during unrest in central Kiev, Ukraine, on Monday, January 20, 2014. (AP Photo/Sergei Grits)

Pro-European integration protesters carry Molotov cocktails during clashes with police in Kiev, on January 20, 2014. (Reuters/Vasily Fedosenko)

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