Turkish President Recep Tayyip Erdogan has said he believes a deal allowing Ukraine to export grain through the Black Sea that is set to expire would remain in place. "I am of the opinion that it will continue," Erdogan told a press conference at the G20 summit in Bali, Indonesia. Ukraine is one of the world's top grain producers, and Russia's invasion of the country blocked 20 million tons of grain in its ports before the United Nations and Turkey brokered the deal in July. Erdogan said he would speak with Russian President Vladimir Putin once he returned to Turkey.