Salem Hamdan, a Yemeni detainee who was being held in the U.S. detention facility at Guantanamo Bay, Cuba, was received by the Yemeni authorities to finish his sentence in Yemen.

According to Yemeni officials, Hamdan is now in the Political Security Detention and will stay there until December 27. He has already served 61 months at Guantanamo.

The source also added that Hamdan is suffering from back pains as was subjected to violent investigations and none humanitarian treatment. Documents revealed that investigators went over fifty days to forbid Hamdan from sleep and  is at times absent-minded as a result.

Hamdan was Osama bin Laden's former driver and was accused by the US military Jury of providing material support to terrorism and sentenced to 66 months in prison.

Earlier to the transfer of Hamdan from the U.S. detention facility at Guantanamo Bay to Yemen, a Pentagon official, told media that Pentagon officials had recommended to hold Hamdan until further notice regardless of the sentence. Also, Guantanamo prosecutors had argued that Hamdan was a war criminal and he should not receive credit for his time detained there.

Hamdan's Pentagon-appointed attorney, Brian Mizer, told media that he was surprised to find out that U.S. transferred Hamdan back to Yemen. "This is welcoming news indeed," Mizar said.

Some 250 detainees are still being held at Guantanamo Bay, Cuba as they currently accused of guilt and must be proven innocent to be let free.