The head of a Ukrainian human rights group that won the Nobel Peace Prize on Friday called for an international tribunal to be created to try Russian President Vladimir Putin over his invasion of Ukraine.
Shortly after Ukraine's Center for Civil Liberties shared the prize with jailed Belarusian activist Ales Byalyatski and Russian rights group Memorial, Oleksandra Matviychuk also called for Russia to be excluded from the U.N. Security Council.
