US troops walk down a pathway at the Parwan Detention Facility in Parwan province, Afghanistan. (file photo)
The office of President Hamid Karzai said in a statement on Thursday that the prisoners were acquitted after Afghan judicial authorities found no evidence of their involvement in militancy.
Several months ago, Washington and Kabul signed a deal under which the US consented to give control of the Bagram Detention Center in the northeastern province of Parwan to Afghan forces.
In November 2012, Karzai ordered Afghan forces to take control of the prison and accused US officials of failing to fully comply with the terms of the Memorandum of Understanding on Detentions.
Karzai has often accused the US of acting in cahoots with the Taliban to justify the presence of foreign troops in the war-torn country.
The International Committee of the Red Cross in May 2010 confirmed reports on the existence of a secret detention facility at the Bagram Airbase, located 11 kilometers (7 miles) southeast of the city of Charikar in Afghanistan’s Parwan Province.
Human rights groups had said that Bagram detainees were menaced, forced to strip naked and kept in solitary confinement in windowless cells.
The US-led invasion of Afghanistan took place in 2001 under the pretext of combating terrorism, toppling the Taliban regime and establishing security in the country.
However, insecurity continues to rise across Afghanistan despite the presence of foreign forces in the country.
This article originally appeared on: Press TV