UNITED NATIONS (AP) — An armed group detained 43 U.N. peacekeepers during fighting in Syria early Thursday and another 81 peacekeepers are trapped, the United Nations said.

The peacekeepers were detained on the Syrian side of the Golan Heights during a “period of increased fighting between armed elements and the Syrian Arab Armed Forces,” the office of U.N. Secretary-General Ban Ki-moon said in a statement. It said another 81 peacekeepers are “currently being restricted to their positions in the vicinity of Ar Ruwayhinah and Burayqah.”