Zelenskyy urges the West to double down on 'efficient' sanctions        

Ukrainian President Volodymyr Zelenskiy at the front line in Donetsk region on Sunday 

Ukrainian president Volodymyr Zelenskyy has urged the West to double down on "efficient" sanctions to help push Russia to allow Ukrainian grain ships to export to world markets.  

Speaking by video to a Financial Times conference, the Ukraine leader said that world leaders should discuss a full embargo on Russian oil and gas "otherwise time will be on the side" of the Kremlin.