U.S. says Biden, Erdogan agreed on Afghanistan but S-400 issue is unresolved

FILE PHOTO: Turkish President Tayyip Erdogan meets with U.S. President Joe Biden on the sidelines of the NATO summit in Brussels, Belgium June 14, 2021. Murat Cetinmuhurdar/Presidential Press Office/Handout via REUTERS

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WASHINGTON (Reuters) -President Joe Biden and Turkish President Tayyip Erdogan agreed in a meeting this week that Turkey would take a lead role in securing Kabul airport as the United States withdraws troops from Afghanistan, U.S. National Security Advisor Jake Sullivan said on Thursday.