The decision to move prisoners of the Islamic State group from northeast Syria to detention centers in Iraq came after a request by officials in Baghdad that was welcomed by the U.S.-led coalition and the Syrian government, officials said Thursday.

American and Iraqi officials told The Associated Press about the Iraqi request, a day after the U.S. military said that it started transferring some of the 9,000 IS detainees held in more than a dozen detention centers in northeast Syria controlled by the Kurdish-led Syrian Democratic Forces, or SDF, in northeast Syria.