Air strikes on Syria's northwestern Idlib region stopped today after a Russian-backed ceasefire went into effect following four months of deadly bombardment, a war monitor said.
"There are no warplanes in the sky and air strikes have stopped" said Rami Abdul Rahman, the head of the Britain-based Syrian Observatory for Human Rights.
Clashes between regime loyalists and insurgents on the edges of the anti-government bastion have also ceased after a unilateral ceasefire by Syrian regime forces went into effect at 6:00 am (0300 GMT), he said.
Artillery and rocket attacks continued however despite the deal, he added.
Syrian regime ally Russia on Friday announced that Damascus government forces would observe a new ceasefire from Saturday morning in Idlib.
It said the truce aimed "to stabilise the situation" in Idlib, one of the last holdout of opposition to forces of Syrian President Bashar al-Assad.
It is the latest Russian-led effort to avert what the United Nations has described as one of the worst humanitarian "nightmares" in Syria's eight-year conflict
The Idlib region is home to some three million people.
Most of Idlib province and parts of neighbouring Aleppo and Latakia provinces are controlled by Hayat Tahrir al-Sham, a jihadist group led by Syria's former Al-Qaeda affiliate.
Russia-backed regime forces have been pressing an offensive against the region despite a deal with rebel backer Turkey in September last year to protect the area.
Stepped up bombardment by Damascus and Moscow since the end of April has displaced 400,000, the UN says, and killed more than 950 civilians, according to the Observatory.
Earlier this month, Damascus scrapped a similar agreement only three days after it went into effect, accusing rebels and jihadists of targeting a Russian air base.
Mr Assad, who now controls around 60 percent of the country, has vowed to reclaim the rest, including Idlib.
The Syrian conflict has killed more than 370,000 people and driven millions from their homes since it started with the brutal repression of anti-government protests in 2011.
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