16th mass grave uncovered beneath former Isis caliphate Raqqa two years after it was seized from jihadi group’s control

The neighbours reported a foul smell coming from the house next door. The house, which Isis had used as a school for its "cubs," had been untouched ever since the militants were chased out of the Syrian city two years ago. Weeds grew around an abandoned car in its courtyard.

Even before the first responders felt the soft ground of the courtyard, they knew what was underneath: the latest mass grave in