Activists wave Russian national flags on the balcony of the regional administration building decorated a banner reading "Donetsk Republic," in Donetsk, Ukraine, Monday, April 7, 2014. A Ukrainian news agency is reporting that pro-Russian separatists who have seized the regional administration building in the eastern Ukrainian city of Donetsk proclaimed the region an independent republic. The activists on Monday also called for a referendum on the sovereignty of the Donetsk region, which borders Russia, to be held no later than May 11, the Interfax news agency reported. (AP Photo/Alexander Ermochenko)