Violence Escalates As Kiev Protests Continue(01 of12)
Open Image ModalKIEV, UKRAINE - FEBRUARY 19: Anti-government protesters guard the perimeter of Independence Square, known as Maidan, on February 19, 2014 in Kiev, Ukraine. After several weeks of calm, violence has again flared between police and anti-government protesters, who are calling for the ouster of President Viktor Yanukovych over corruption and an abandoned trade agreement with the European Union. (Photo by Brendan Hoffman/Getty Images) (credit:Getty Images)
Violence Escalates As Kiev Protests Continue(02 of12)
Open Image ModalKIEV, UKRAINE - FEBRUARY 19: Anti-government protesters guard the perimeter of Independence Square, known as Maidan, on February 19, 2014 in Kiev, Ukraine. After several weeks of calm, violence has again flared between police and anti-government protesters, who are calling for the ouster of President Viktor Yanukovych over corruption and an abandoned trade agreement with the European Union. (Photo by Brendan Hoffman/Getty Images) (credit:Getty Images)
Violence Escalates As Kiev Protests Continue(03 of12)
Open Image ModalKIEV, UKRAINE - FEBRUARY 19: Anti-government protesters guard the perimeter of Independence Square, known as Maidan, on February 19, 2014 in Kiev, Ukraine. After several weeks of calm, violence has again flared between police and anti-government protesters, who are calling for the ouster of President Viktor Yanukovych over corruption and an abandoned trade agreement with the European Union. (Photo by Brendan Hoffman/Getty Images) (credit:Getty Images)
Violence Escalates As Kiev Protests Continue(04 of12)
Open Image ModalKIEV, UKRAINE - FEBRUARY 19: Anti-government protesters guard the perimeter of Independence Square, known as Maidan, on February 19, 2014 in Kiev, Ukraine. After several weeks of calm, violence has again flared between police and anti-government protesters, who are calling for the ouster of President Viktor Yanukovych over corruption and an abandoned trade agreement with the European Union. (Photo by Brendan Hoffman/Getty Images) (credit:Getty Images)
Violence Escalates As Kiev Protests Continue(05 of12)
Open Image ModalKIEV, UKRAINE - FEBRUARY 19: Anti-government protesters guard the perimeter of Independence Square, known as Maidan, on February 19, 2014 in Kiev, Ukraine. After several weeks of calm, violence has again flared between police and anti-government protesters, who are calling for the ouster of President Viktor Yanukovych over corruption and an abandoned trade agreement with the European Union. (Photo by Brendan Hoffman/Getty Images) (credit:Getty Images)
Violence Escalates As Kiev Protests Continue(06 of12)
Open Image ModalKIEV, UKRAINE - FEBRUARY 19: Fireworks fly over Independence Square, known as Maidan, during clashes in the early hours of on February 19, 2014 in Kiev, Ukraine. After several weeks of calm, violence has again flared between police and anti-government protesters, who are calling for the ouster of President Viktor Yanukovych over corruption and an abandoned trade agreement with the European Union. (Photo by Brendan Hoffman/Getty Images) (credit:Getty Images)
Violence Escalates As Kiev Protests Continue(07 of12)
Open Image ModalKIEV, UKRAINE - FEBRUARY 19: Anti-government protesters guard the perimeter of Independence Square, known as Maidan, on February 19, 2014 in Kiev, Ukraine. After several weeks of calm, violence has again flared between police and anti-government protesters, who are calling for the ouster of President Viktor Yanukovych over corruption and an abandoned trade agreement with the European Union. (Photo by Brendan Hoffman/Getty Images) (credit:Getty Images)
Violence Escalates As Kiev Protests Continue(08 of12)
Open Image ModalKIEV, UKRAINE - FEBRUARY 19: A fire truck is used to rescue people from the upper floors of a burning Trade Unions Building, which has been used as the de facto headquarters for anti-government protesters, on February 19, 2014 in Kiev, Ukraine. After several weeks of calm, violence has again flared between police and anti-government protesters, who are calling for the ouster of President Viktor Yanukovych over corruption and an abandoned trade agreement with the European Union. (Photo by Brendan Hoffman/Getty Images) (credit:Getty Images)
Violence Escalates As Kiev Protests Continue(09 of12)
Open Image ModalKIEV, UKRAINE - FEBRUARY 19: Anti-government protesters guard the perimeter of Independence Square, known as Maidan, on February 19, 2014 in Kiev, Ukraine. After several weeks of calm, violence has again flared between police and anti-government protesters, who are calling for the ouster of President Viktor Yanukovych over corruption and an abandoned trade agreement with the European Union. (Photo by Brendan Hoffman/Getty Images) (credit:Getty Images)
Violence Escalates As Kiev Protests Continue(10 of12)
Open Image ModalKIEV, UKRAINE - FEBRUARY 19: Anti-government protesters guard the perimeter of Independence Square, known as Maidan, on February 19, 2014 in Kiev, Ukraine. After several weeks of calm, violence has again flared between police and anti-government protesters, who are calling for the ouster of President Viktor Yanukovych over corruption and an abandoned trade agreement with the European Union. (Photo by Brendan Hoffman/Getty Images) (credit:Getty Images)
Violence Escalates As Kiev Protests Continue(11 of12)
Open Image ModalKIEV, UKRAINE - FEBRUARY 19: Anti-government protesters guard the perimeter of Independence Square, known as Maidan, on February 19, 2014 in Kiev, Ukraine. After several weeks of calm, violence has again flared between police and anti-government protesters, who are calling for the ouster of President Viktor Yanukovych over corruption and an abandoned trade agreement with the European Union. (Photo by Brendan Hoffman/Getty Images) (credit:Getty Images)
Violence Escalates As Kiev Protests Continue(12 of12)
Open Image ModalKIEV, UKRAINE - FEBRUARY 19: Anti-government protesters guard the perimeter of Independence Square, known as Maidan, on February 19, 2014 in Kiev, Ukraine. After several weeks of calm, violence has again flared between police and anti-government protesters, who are calling for the ouster of President Viktor Yanukovych over corruption and an abandoned trade agreement with the European Union. (Photo by Brendan Hoffman/Getty Images) (credit:Getty Images)