Russian forces tighten grip on Crimea despite warning

Street violence flared in Sevastopol, home to Russia’s Black Sea Fleet, when pro-Russian activists and Cossacks beat and kicked a group of Ukrainians at a meeting.
Russian forces’ seizure of the Black Sea peninsula has been bloodless, but tensions are mounting following the decision by pro-Russian groups that have taken over the regional parliament to make Crimea part of Russia.