The capture of Al-Habeet, one of several strategic targets in Idlib for advancing pro-regime forces, came after another night of deadly fighting.
Syrian regime forces seized a town on the edge of Idlib province on Sunday, a monitor said, their first ground advance since resuming an offensive on the rebel-dominated enclave more than three months ago.
The region of northwestern Syria, which is home to an estimated three million civilians, has come under almost daily Syrian and Russian bombardment since late April.
The most recent fighting focused on an area straddling Idlib and Hama provinces, a war monitor said, and claimed dozens of lives on both sides.
“Regime forces seized the town of Al-Habeet, in Idlib’s southern countryside, at dawn,” Rami Abdel Rahman, head of the Syrian Observatory for Human Rights war monitor, said.
The regime’s latest gains were in the north of Hama province, which lies to the south of Idlib.
The area has escaped the control of President Bashar al-Assad’s government since 2015 and is the last major bastion of opposition to his regime and its allies.
The capture of Al-Habeet, one of several strategic targets for advancing pro-regime forces, came after another night of deadly fighting, the Observatory said.
According to the Britain-based monitor’s tally, 70 combatants were killed on Saturday alone, 32 of them pro-government forces.
The remaining 38 were from the opposing ranks of Hayat Tahrir al-Sham, led by members of Al Qaeda’s former Syria franchise, and allied rebel fighters.
Rami Abdel Rahman said another 27 combatants, nine of them regime fighters, were killed in early fighting on Sunday.
He described Al-Habeet as “the first town in southern Idlib to be taken by the regime since the start of the escalation” in April.
The town is seen as a stepping stone towards Khan Sheikhoun, one of the main towns in Idlib and the target of some of the eight-year-old conflict’s deadliest airstrikes.
Tens of thousands of people have been displaced in recent weeks and aid groups have warned that an all-out assault on Idlib could turn the current humanitarian emergency into a catastrophe of proportions previously unseen.
The fighting is a violation of a deal which was reached by the battle’s two main foreign brokers – Russia and Turkey – but was never implemented.
Russia is Damascus’ main backer while Turkey holds sway over some rebel forces along its border.
The deal’s terms were never realistic but the agreement sealed in the Russian resort of Sochi in September 2018 staved off a fully-fledged offensive that risks triggering the Syrian civil war’s bloodiest phase yet.