"Government warplanes carried out air strikes after midnight on several areas in the town of Ariha" in Idlib province, said the monitoring group's head Rami Abdel Rahman.
"The preliminary toll is 11 killed, including at least seven civilians," three of them children, he said.
Others were still missing and rescue teams were searching for anyone trapped under the rubble, Abdel Rahman added.
Leith Fares, a rescue worker in Ariha, told AFP his team had pulled at least 20 wounded people out of the rubble.
"We're still looking for two families, estimated at eight to 10 members each, that are still trapped," Fares said.
The deaths come two days after 10 civilians were killed in government air strikes on Ariha, held since spring 2015 by an anti-regime coalition dominated by jihadists.
Idlib province has been battered by heavy air strikes in recent weeks, with intensifying bombing raids by regime warplanes in particular, according to the Observatory.
It has also been rocked by infighting between rebel and jihadist factions, including Al-Qaeda's former Syrian affiliate, Fateh al-Sham Front.
Disclaimer: No Business Standard Journalist was involved in creation of this content
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
