As it happened: Ukraine crisis

Key Points

• Crimean parliament asks to join Russia and plans referendum for 16 March on endorsing the move
• EU and US leaders join Ukraine's government in condemning move "as illegal"
• EU suspends visa and economic talks with Russia and threatens sanctions at emergency summit
• US imposes visa restrictions on people who "threaten the sovereignty and territorial integrity of Ukraine"
• Pro-Russian forces remain in control of Crimea, where stand-off continues with Ukrainian troops blockaded in bases
• All times GMT