The source added that some 10 units of military equipment had been also destroyed.
The Syrian army detected a detachment of insurgents prior to launching the attack. The target was attacked by Syrian Air Force aircraft and artillery.
On Friday, a group of 37 terrorists of the terrorist group was discovered and killed by the Syrian army between the city of Latakia and the Turkish border, while they were trying to approach the city.
Syria has been in a state of a civil war since March 2011 with government forces fighting on multiple fronts against a so-called "moderate" opposition and numerous extremist groups, including Jabhat al-Nusra.
The al-Nusra Front is a branch of al-Qaeda operating in Syria and Lebanon. The group announced its formation in January 2012. It has been described as both one of the most aggressive and successful rebel forces in Syria.