Syrian Observatory for Human Rights

State news agency quotes a senior police officer saying that the killings took place between 2012 and 2014

The attack takes place in Tal Halaf southwest of Ras al-Ayn, which was taken by the Turkish military

Idlib city is controlled by Hayat Tahrir al-Sham, a group led by Syria's former al Qaeda affiliate

'From 2011 until now, there has never been the level of bombardment we've seen in the last 96 hours'

Aerial strike kills at least 27 people, including civilians

Observatory activists had counted at least 33 bodies at the site of the strike near the village of al-Mansoura