Police officers give medical aid to a colleague after a grenade blast during a clash between protesters and police after vote to give greater powers to the east, outside the Parliament, Kiev, Ukraine, Monday, August 31, 2015. The Ukrainian parliament has given preliminary approval to a controversial constitutional amendment that would provide greater powers to separatist regions in the east. Hundreds of people gathered in front of the parliament to protest against the amendment. (Photo by Vladimir Donsov/AP Photo)
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