The last British resident being held in Guantanamo Bay is being returned to the United Kingdom, having been detained there for 13 years, the BBC reports.
A plane carrying Shaker Aamer, 46, is understood to be on its way to the UK, having left the United States military base.
The Saudi national was held in the military prison in Cuba since 2002 but has never been charged or put on trial.
Mr. Aamer, who has four children, has permission to live indefinitely in the UK because his wife is British.
He was detained in Afghanistan in 2001. U.S authorities alleged he had led a unit of Taliban fighters and had met former al-Qaeda leader Osama Bin Laden.
But Mr. Aamer has maintained he was in Afghanistan with his family doing charity work.
Since 2007 he has been cleared for release twice, by U.S presidents George W. Bush and Barack Obama.