United States Vice President Joe Biden says the Guantanamo Bay detention camp will close by next January.
During a trip to eastern Europe, Mr Biden said on Thursday that decisions on the future of all inmates are likely well before that time.
He insisted Washington is on course to fulfil a pledge to close the camp made by President Barack Obama immediately after his inauguration in January.
Since the president signed an executive order, only 11 detainees have been freed from the prison, and one has been transferred to the United States to face trial in a civilian court.
On Monday, senior administration officials said a task force reviewing detention policy would need another six months to complete a report on its efforts to close Guantanamo.