SYRIAN Democratic Forces regained full control of the al-Sinaa prison in Syria’s Hasakah province today, after nearly a week of fighting following an attempted Isis prison break.

Spokesman Ferhad Shami announced the success of the forces this afternoon, with more than 1,000 Isis fighters believed to have handed themselves in.

“The People’s Hammer operation has culminated with our entire control of the al-Sinaa in Hasakah and the surrendering of all Daesh terrorists,” he said.

“In thorough raids the forces targeted dormitories where the terrorists were barricaded,” which forced the Islamists to surrender, he said.

Isis launched an attack on the prison holding more than 3,000 of its members last Thursday, which the autonomous administration claimed was masterminded by Turkey.

More than 200 jihadists were involved in the bid, but were repelled by the Syrian Democratic Forces, supported by US air strikes and British special operations forces.

United Nations special rapporteur Fionnuala Ni Aolain issued an appeal for the repatriation of children held in the camp on Tuesday, as hundreds were taken as hostages by Isis.

She has previously called for countries to repatriate their nationals held in the camps and put them on trial. 

It is believed that jihadists from 57 nations are held in the al-Hol and Roj camps.