The Syrian Observatory for Human Rights said opposition forces attacked regime positions in the south of Idlib, killing at least 51 combatants on both sides, as Russian-backed regime forces have been making gains in the last opposition stronghold.
The opposition and rebel withdrawal came after the Russia-backed Syrian regime forces advanced into Khan Shaykhun city in Idlib. The US urged the regime to revert to a ceasefire in Idlib after Monday's air strike on a Turkish convoy.
Commenting on the explosion in Jisr al Shughur town of Idlib province, chief of the Syrian Observatory for Human Rights Rami Abdel Rahman says "it is not known until now whether it was a car bomb, or the explosion of a car carrying explosives."