As it happened: Crimea crisis
Key Points
- Ukraine's military says an officer has been killed in an attack on a base in Crimea
- The shooting came hours after President Putin signs a treaty to accept the "Republic of Crimea" into the Russian Federation
- US, UK, France and Germany condemn Russia's actions and call for a strong response
- The White House calls a meeting of G7 leaders next week to discuss the crisis
- Pro-Russian forces have been in control of Crimea since late February
- All times GMT
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