Dozens of civilians have been killed in an airstrike on a camp for internally displaced Syrians in Idlib province, near the border with Turkey. At least 30 people were reportedly killed, some of them children, and dozens more wounded. U.N. humanitarian affairs chief Stephen O’Brien said the strike could be a war crime. It’s still unclear who carried it out, with reports it was either Syrian or Russian planes. A witness condemned the attack.

Witness: “We are displaced people, and people were set on fire. They set tents in a restricted space ablaze. He set them on fire. May God burn them as they burned these people.”

The attack followed the announcement of an expanded truce brokered by Russia and the United States, which brought a degree of calm to the embattled city of Aleppo. But in a message to Russian President Vladimir Putin, Syrian President Bashar al-Assad said he still sought a total victory over rebels in Aleppo, where fighting over the past two weeks has killed about 300 people.