Turkey-backed opposition forces attacked government troops in a village in northwest Syria on Thursday, triggering violent clashes between the two sides, Turkish state-run media and Syrian opposition activists said.
The fighting came amid faltering talks between Turkish and Russian officials on restoring calm to the Idlib area.
The fighting on multiple fronts has triggered the largest single wave of displacement in the nine-year civil war, with nearly 1 million people fleeing from their homes toward the Turkish border.