Strike kills 15, including 4 kids, in Syria's Idlib: Monitor

The monitoring group said the toll in the strike on Urum al-Joz could rise further because a number of people wounded in the attack were in a serious condition.

It said the strike was believed to have been carried out by Russian planes, which operate in support of the Syrian government.

The Observatory, which relies on a network of sources inside Syria for its information, says it determines whose planes carry out raids according to type, location, flight patterns and munitions used.

Idlib province is controlled by a rebel alliance that includes a former Al-Qaeda affiliate, and is regularly targeted by both the Syrian government and its Russian ally.

Earlier this week, a suspected chemical attack hit the town of Khan Sheikhun in Idlib, killing at least 87 civilians, including 31 children.

Much of the international community accused Bashar al-Assad's government of responsibility for that attack, though Damascus denied involvement.

The Khan Sheikhun strike prompted Washington to take its first direct military action against Assad's government, with missile strikes against a central air base.

More than 320,000 people have been killed in Syria since the conflict began in March 2011 with anti-government demonstrations.