Five soldiers were injured in a blast that targeted an army tank in the northeastern town of Arsal's Ras al-Sarj area, the state-run National News Agency said on Friday.
Gunfire was later heard in the area and the army deployed heavily, NNA added.
It added that the troops engaged in heavy clashes with the gunmen in the Khalaf al-Jafar area in Arsal.
Afterwards, the army raided the refugee encampments close to the site of the explosion.
Al-Jadeed TV said that the bomb was planted on the side of the road and has targeted the army patrol.
