Russia makes UN move after spy plan is rebuffed

Moscow offer of joint investigation voted down at watchdog meeting

THE HAGUE, Netherlands - Russia has called for urgent UN Security Council talks on the spiraling diplomatic crisis sparked by the spy poisoning scandal as a group of expelled US diplomats left their embassy in Moscow early on Thursday.

Britain blames Russia for the March 4 poisoning on UK soil of former double agent Sergei Skripal with what it says was a military-grade nerve agent developed by the Soviet Union.