LONDON (Reuters) -The Kremlin said on Thursday that no agreement had been reached to sell grain from Ukraine to Turkey – which Ukraine says Russia has stolen from it – but that work on a deal was continuing. Moscow denies stealing the grain but the United States says there are credible reports that Russia is “pilfering” it. Yevgeny Balitsky, a Russian-installed official in charge of Russian-occupied areas of Ukraine’s Zaporizhzhia region, said this week that grain had been transported from there to Crimea, en route to the Middle East. Asked if any deal had been reached to sell this grain to Tu…