- Summary- Russia halts participation in UN grain deal- Move comes after drone attacks on Crimea- Russia says British personnel helped drone attack- Ukraine says Russia invents attacks- Biden says move is outrageousOct 29 (Reuters) - Russia on Saturday suspended participation in a U.N.-brokered Black Sea grain deal after what it said was a major Ukrainian drone attack on its fleet in Crimea, dealing a blow to attempts to ease the global food crisis.The suspension will cut Ukrainian grain exports from its crucial Black Sea ports.Russia said it had repelled the attack but that the ships targeted were involved in ensuring the grain corridor out of Ukraine's Black Sea ports.'HUNGER GAMES'Since Russia and Ukraine signed the U.N.-backed Black Sea Grain Initiative in Turkey on July 22, more than 9 million tonnes of corn, wheat, sunflower products, barley, rapeseed and soya have been exported.Just 24 hours before Russia's move, a spokesman for U.N. Secretary-General Antonio Guterres had appealed to the parties to renew the pact."