Ukraine cancels Black Sea grain deal talks for the week.

TL;DR
Ukraine has not ruled out the possibility that the deal allowing the safe Black Sea export of Ukrainian grain will end on May 18, when it is due to expire, and no additional talks are planned this week. Moscow has threatened to quit the agreement on May 18 unless a list of demands is met to remove obstacles to Russia's own grain and fertiliser exports. Ukraine had exported 2.5 million tonnes of agricultural goods in April despite a slowdown in the use of the grain corridor.
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