Dozens of families have been released from al-Hol camp in Syria's al-Hasakeh province following tribal mediations and guarantees, a local activist said.

Security forces are meanwhile continuing their search for "Islamic State of Iraq and Syria" (ISIS) women accused of stabbing a number of women in the camp.

Mediation by rural Deir Ezzor tribes led to the release of 108 families -- more than 400 people in total -- from the sprawling and overcrowded camp where ISIS elements and their families are being detained, along with many others.

The majority of those released were women and children, media and social activist Ammar Saleh told Diyaruna.

The mediation efforts succeeded after tribal elders provided guarantees that detainees who were linked with ISIS would not go back to extremist ideology nor provide assistance to the group's scattered remnants in the area, he said.

The tribal elders also agreed to report any attempts of contact between the former detainees and ISIS remnants at large in the area, Saleh said.

Saleh said most of the released detainees hail from the villages and towns of Theban, Hajin, al-Baghouz and al-Basira, which were last to be liberated by the Syrian Democratic Forces (SDF) with the support of the international coalition.

Tracking down perpetrators of violence

Meanwhile, Saleh said, Asayesh forces (Kurdish internal security) and the SDF, which are charged with maintaining security in the camp, have begun a new campaign to search for the ISIS women involved in recent violence.

A group of hardline women inside the camp have formed a hesba ("religious police") unit that has been attempting to impose ISIS's rules and ideology by force, Saleh said.

These women have carried out a number of fatal stabbings inside the camp, targeting women who refused to obey the orders they had issued, and have assaulted camp residents and burned down tents, he said.

According to security officials inside the camp, he said, some women have since been arrested in connection with these crimes, and investigations are ongoing, with the aim of putting an end to the activities of this group of women.