US-led airstrikes targeted a residential building in Syria's northern city of Raqqa, killing 43 civilians, China's Xinhua news agency reported state TV as saying on Saturday.
The airstrikes targeted the al-Jamili building in Raqqa, said the TV, adding that most of those killed were women and children.
The rate of civilian causalities by US-led airstrikes has increased recently as a result of the intensification of US airstrikes on Raqqa, the de facto capital of the Islamic State (IS) group, and other IS strongholds in northern and eastern Syria.
A day earlier, 20 civilians were killed when a US-led airstrike targeted residential buildings in Raqqa, including a hospital and a hotel.
Last Sunday, 20 civilians were killed by similar airstrikes in Raqqa.
Last Thursday, 35 civilians were killed by airstrikes on IS-held city of Mayadeen in the eastern province of Deir al-Zour.
The Syrian government has repeatedly denounced the attacks targeting civilians, branding the operation of the US-led anti-terror coalition in Syria as "illegitimate
Source: NAM News Network