Armed men seize parliament building in Ukraine 's Crimea region . Crimea is last big bastion of opposition to new government in Kiev following President 's ouster . Anti-Ukrainian protests are being held , Russian vigilante groups have sprung up across Crimea , Russian flags have been hoisted on government buildings , clashes have broken out between Russian separatists and loyalist Tatars and Ukrainians , and the Russian military has been seen patrolling key buildings and infrastructure . Tensions have simmered since President Yanukovych 's overthrow last week . Comment: Ukraine must decide if it 's worth risking recent progress over restive Crimea .
Armed men seize parliament building in Ukraine 's Crimea region . Crimea is last big bastion of opposition to new government in Kiev following President 's ouster . Tensions have simmered since President Yanukovych 's overthrow last week . Comment: Ukraine must decide if it 's worth risking recent progress over restive Crimea .