COMM UNIAN ARCHIVE Riot police officers use tear gas against opposition activists near the presidential administration building during an unprecedented act of violence in Ukraine's capital Kiev Friday, March 9, 2001. Demonstrators hurling bottles and stones clashed with riot police using tear gas on Friday in the bloodiest protest in a three-month-old campaign against Ukraine's president Leonid Kuchma. Photo by Dima Gavrish/ UNIAN