The Lebanese army has been fighting the Islamic State of Iraq and the Levant (ISIL) and Syria-based al-Qaeda affiliate al-Nusra Front for months now.

There is an active frontline in Lebanon's northeast where those armed groups control a mountainous region along Lebanon's border with Syria.

The Lebanese army has imposed strict security measures in the region, but many residents, majority of whom are Sunnis, say they are being treated by the military as security threats.

Al Jazeera's Zeina Khodr reports from Arsal.