The move was a part of Obama’s campaign to close the detention facility and release the prisoners, held there for more than a decade.

MOSCOW, December 20 (Sputnik) — Four Guantanamo detainees from Afghanistan, held in the notorious US prison for about a decade, were released and sent home, according to Washington Post.

US authorities announced on Saturday, that four prisoners — Mohammed Zahir, Abdul Ghani, Khi Ali Gul and Shawali Khan – were flown to Afghanistan at the request of Afghan President Ashraf Ghani, as the newspaper reports.

Mohammed Zahir, identified as a member of the Taliban, was accused of possessing materials which could be used for a nuclear bomb. He was also suspected of having ties to Afghani drug trafficking and being involved in weapons smuggling. Zahir was identified as a high-risk detainee, posing “a threat to the US, its interests, and allies," according to his Guantanamo file, published by WikiLeaks.

Abdul Ghani was accused of planning terrorist attacks against the US. “If released without rehabilitation, close supervision, and means to successfully reintegrate into his society as a law abiding citizens, it is assessed detainee would immediately seek out prior associates and reengage in hostilities and extremist support activities," his file stated.

Khi Ali Gul was convicted for organizing and carrying out attacks against the US and Coalition forces. He reportedly worked as intelligence officer and gathered secret data which could be used for future terrorist activities.

Shawali Khan was suspected of being related to al-Qaida and accused of participating in terrorist acts against the US.

The fate of other eight Afghans still detained at Guantanamo Bay, has not been yet discussed.

Among those countries, which have accepted former Guantanamo prisoners in 2014 were Saudi Arabia, Georgia, Uruguay, Slovakia, Algeria and Kuwait, as reported by Washington Post.