Russia and the US have "no common vision" on the crisis in Ukraine, Russia's foreign minister has said after talks with his US counterpart. However Sergei Lavrov added that his meeting with Secretary of State John Kerry had been "constructive". Mr Kerry said the US was "deeply concerned" about Russian troop deployments on Ukraine's eastern border and in Crimea. The two foreign ministers held six hours of talks in London. Mr Lavrov told reporters that Russia had no plans to invade south-eastern Ukraine. Russia would "respect the will of the people of Crimea", he said, ahead of Sunday's referendum there....
