Turkey says talks to extend a deal allowing grain exports from Ukraine via the Black Sea following the Russian invasion are nearing an agreement before it expires on May 18. "We are heading toward an agreement on the extension of the grain deal," Turkish Defense Minister Hulusi Akar said in a statement. Akar was referring to talks in Istanbul this week between officials from Turkey, Russia, Ukraine and the United Nations. In addition to the longer extension of the deal, the meeting focused on a United Nations proposal to resume Russia's ammonia exports along the Togliatti-Odesa pipeline, the UN said.