Warplanes struck a mosque in the rebel-held village of al-Jina, in northwest Syria, killing at least 42 people and wounding dozens, the Syrian Observatory for Human Rights, a Britain-based war monitor, said on Thursday.
The jets struck the village, southwest of Atarib near Aleppo, as the mosque was full of worshippers at evening prayer, said the Observatory, which monitors the Syrian war via a network of contacts across the country.
The U.S. military said it carried out an air strike on Thursday against al Qaeda militants, killing several, at a meeting location in Idlib province, but it was unclear if it was referring to the attack on Al-Jina.
The statement from U.S. Central Command made no mention of civilian casualties.