As it happened: Ukraine naval base stormed in Crimea

Key Points

• Ukraine announces it is drawing up a plan to withdraw soldiers and their families from Crimea
• Ukraine says it is leaving the Moscow-led Commonwealth of Independent States and is preparing military exercises with the US and UK
• Pro-Russian forces storm two Ukrainian naval bases in Crimea
• Ukraine says "hostages" taken at bases and issues ultimatum for their release
• The latest developments come after Russia and Crimea signed a treaty on Tuesday absorbing the territory into the Russian Federation
• Crimeans voted in favour of splitting from Ukraine in a referendum on Sunday dismissed by the West as illegal. All times GMT