A large fire broke out in the Babisqa area near the Syrian-Turkish border on the northern outskirts of Idlib when an ammunition depot belonging to a group called Faylaq al-Sham exploded, Al Mayadeen reported.
Two Faylaq al-Sham elements were killed and four civilians were injured in the blast.
A 12-year-old girl was also killed after a refugee camp in the area was set on fire as a result of the blast, according to the reports.
The news sources added that 45 of the refugees' tents caught fire too.
A military source affiliated with the Syrian opposition said the blast was caused by an unidentified drone attack on the ammunition depot, but other military sources said the blast occurred as a vehicle was transferring artillery shells from there.
MP/5505234