A child speaks with a Ukrainian soldier during a rally in Kiev, Ukraine, Friday, Nov. 21, 2014 (Photo: AP)

Ukrainian soldiers sing the Ukrainian national anthem during a rally in Kiev, Ukraine, Friday, Nov. 21, 2014 (Photo: AP)

Activists shout slogans during a rally in Kiev, Ukraine, Friday, Nov. 21, 2014 (Photo: AP)

Ukrainians gather in Independence Square in Kiev, Ukraine, Friday, Nov. 21, 2014 (Photo: AP)

Ukrainians light candles at a memorial for people killed in clashes with security forces in Kiev's Independence Square, Ukraine, Friday, Nov. 21, 2014 (Photo: AP)

Ukrainians light candles during a rally in Kiev, Ukraine, Friday, Nov. 21, 2014 (Photo: AP)

Ukraine's President Petro Poroshenko speaks with people after a wreath laying ceremony at the monument to the fallen Heroes of the "Heavenly Sotnya" (Hundred) in Kiev, Ukraine, Friday, Nov. 21, 2014 (Photo: AP)

Lit candles in the shape of the coat of arms of Ukraine are set up in Independence Square in Kiev, Ukraine, Friday, Nov. 21, 2014 (Photo: AP)

Ukraine's President Petro Poroshenko speaks with people after wreath laying ceremony at the monument to the fallen Heroes of the "Heavenly Sotnya" (Hundred) in Kiev, Ukraine, Friday, Nov. 21, 2014 (Photo: AP)

Ukraine's President Petro Poroshenko during a ceremony at the monument to the fallen Heroes of the "Heavenly Sotnya" (Hundred) in Kiev, Ukraine, Friday, Nov. 21, 2014 (Photo: AP)