Islamist militants have reinforced the siege against 40 Filipino peacekeepers trapped in Syria's Golan Heights, according to diplomatic sources at the United Nations.
More than 20 vehicles carrying armed fighters were seen approaching the region which has been demilitarized and monitored by the United Nations Disengagement Observer Force since Israel and Syria signed an armistice in 1974.
Earlier, nearly three dozen peacekeepers who were trapped by militants in the Golan Heights were successfully extracted, according to UN officials.
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