Shami said SDF forces advanced after about 300 Daesh militants surrendered early Monday Over a dozen Kurdish fighters and more than 100 militants have been killed in clashes since the assault began BEIRUT: US-backed Syrian Kurdish fighters deployed inside a prison in northeast Syria on Monday, closing in on the facility’s last wing controlled by militants for days, the force and a war monitor said. The raid follows the surrender of hundreds of Daesh fighters and aims to end one of the most brazen attacks by the group in years. Forces took over buildings near the prison’s northern wing, said Farhad Shami, a spokesman for the Kurdish-led Syrian Democratic Forces. That’s where dozens of Daesh militants have been holed up since Thursday. Shami said SDF forces advanced after about 300 Daesh militants surrendered early Monday. Over a dozen Kurdish fighters and more than 100 militants have been killed in clashes since the assault began, according to the Kurdish-led force. The number of fugitives remain unclear. Journalists at the scene said Kurdish officials asked them to step away from the vicinity of the prison earlier Monday, apparently in anticipation of a military operation. The Britain-based Syrian Observatory for Human Rights reported a buildup of Kurdish forces backed by US armored vehicles around the prison. Witnesses in the city of Hassakeh, where the prison is located and is under a tight security cordon, said buses arrived at the prison apparently to transport militants who had turned themselves in to another location. Coalition helicopters were hovering overhead, a resident said. Late on Sunday, the Kurdish-led administration announced a weeklong curfew in Hassakeh starting Monday. Hundreds of city residents have fled the fighting. The standoff followed a bold assault on Gweiran Prison on Thursday. Militants rammed vehicles through its walls, enabling a number of imprisoned fighters to escape and take hostages. Clashes have continued since then, including with militants holed up in adjacent residential areas. The US-led coalition carried out a number of strikes on suspected militants who had taken control of the prison’s northern wing. On Sunday, Shami said the militants were using hundreds of minors detained in the prison as human shields. More than 3,000 suspected Daesh militants, including over 600 minors, are held in Gweiran, the largest of a dozen detention facilities in Syria housing militants. Save the Children and Human Rights Watch said Monday that audio testimony they received suggests that children were among the dead and wounded. “Reports that children have been killed or injured are tragic and outrageous,” said Sonia Khush, Save the Children’s Syria response director, calling for the immediate evacuation of children. Many of the boys caught in the fighting have been held in Gweiran for almost three years, including about 300 who are from Iraq and other countries, according to Human Rights Watch. Letta Tayler, associate crisis and conflict director at HRW, said one foreign boy in an audio message described “a lot of people dead, a lot of people injured.” Tayler said the boy was speaking from the kitchen where he described coming under fire. It was not clear if the boys, who are normally held in separate wings, were brought to the kitchen after the assault began. Earlier in the assault, SDF officials said the group had lost contact with kitchen staff, suggesting they were among hostages taken by Daesh. “While the responsibility for this siege rests squarely with (IS), this does not absolve the US-led coalition and the local authorities of their responsibility to take all feasible steps to protect these prisoners from harm, including hundreds of boys trapped inside who have never been charged with any crime,” Tayler said. Khush, of Save the Children, called for foreign children to be repatriated with their families. “The international community cannot have the blood of any of these children on their hands,” she said. Rami Abdurrahman, the head of the Observatory, said scores of minors, some as young as 15, had been moved to another prison facility to the south soon after the assault began. The SDF said about 27 of its fighters were killed in the assault. Abdurrahman put the figure at 52, adding that about 100 militants were killed. The SDF said about 100 escaped and were arrested by the total number of fugitive is still not clear. Dozen of facilities in northeastern Syria run by the SDF house thousands of suspected Daesh militants, including foreigners, since the defeat of the extremists in 2019. The Kurdish-led administration has said the facilities are a strain on its resources and had repeatedly appealed for countries to repatriate their nationals. Thousands of Daesh family members and supporters are also held in displacement camps in what amounts to detention facilities mostly for women and children.