At least 42 people are dead and dozens are wounded after warplanes struck a mosque in a rebel-held village southwest of Aleppo in Syria, a monitor says.
The jets struck as the mosque was full of worshippers at evening prayer on Thursday, said the Syrian Observatory for Human Rights, which monitors the country's civil war.
The village of al-Jina, southwest of Atarib, is in one of the main rebel-held parts of Syria - the northwest that includes Idlib province and the western parts of Aleppo province - and its population has been swollen by refugees, UN agencies say.
The Syrian and Russian military have carried out many air strikes in Idlib and Aleppo provinces during the war, which has entered its seventh year.
The US has also carried out strikes there in recent months, targeting a jihadist rebel group that until last year was a formal affiliate of al-Qaeda.
Rebels in northwest Syria fighting to oust President Bashar al-Assad also include groups supported by Turkey, the US and Gulf monarchies.
