The U.S. special envoy for Syria James Jeffrey is warning of an international crisis, as nearly three-quarters of a million Syrians have been forced to flee their homes in the northwestern province of Idlib as the Russian-backed Syrian government continues its offensive against the rebel-held territory.

James Jeffrey: “We saw 200 Russian and Syrian regime airstrikes in the last three days, mainly against civilians — as I said, the secretary-general is so alarmed that he’s created a board of inquiry into the attacks on civilians — and massive movements of troops, pushing back hundreds of square kilometers and setting, I think now, 700,000 people, who are already internally displaced, on the move once again towards the Turkish border, which would then create an international crisis.”