Syrian troops are approaching the mountain resort of Zabadani, which has been under rebel control for two years, cutting it off from rebel-held areas in the mountainous Qalamoun region, state TV said.
Syrian forces, bolstered by fighters from Lebanese Shiite militant group Hezbollah, have systematically captured most of the rebel-held towns along the mountainous frontier since launching an offensive in the region in November.
State TV said troops in the Qalamoun region reached the edge of the Lebanese border town Tufeil. The Britain-based Syrian Observatory for Human Rights reported clashes in the area on today.
"With this operation, our heroes of the Syrian Arab Army have tightened their grip on armed groups and they will all be killed in the areas that they fled to," said the officer, whose name was not given.
Syria's conflict, now in its fourth year, has killed at least 160,000 people, according to activists. Nearly three million Syrians have fled the country.