WASHINGTON -- Attorney General Eric Holder said some detainees being held at Guantanamo Bay, Cuba, may end up being released in the U.S. as the Obama administration works with foreign allies to resettle some of the prisoners.

Mr. Holder, in a briefing with reporters, said administration officials are still reviewing individual cases of the approximately 250 detainees to determine which will be put on trial and which may be released to comply with plans to close the detention facility by next year.

Six...