Syrian government forces killed more than 60 rebels Wednesday in an ambush near Damascus, a blow to opposition fighters confronting a regime offensive in the capital, activists said, according to The Associated Press.

The state news agency SANA confirmed the ambush near the Damascus suburb of Adra at dawn, saying “dozens” were killed. The Britain-based Syrian Observatory for Human Rights said at least 62 rebels died. It did not report any government casualties.

SANA said the rebels were members of the al-Qaida-linked Jabhat al-Nusra or Nusra Front. It added that they included foreign fighters.

Syrian troops have been on the offensive in the past few months in an attempt to clear out Damascus suburbs used by opposition fighters to threaten President Bashar Assad’s seat of power.

State-run television broadcaster Al-Ikhbariya aired footage of bloodied corpses, some in camouflage. It said they were killed in an ambush as they were on their way to attack an army post near Damascus. The bodies were gathered in what appeared to be a desert area.

Al-Ikhbariya also showed a Tunisian passport of a man who was born in 1978. The picture on the passport was of a bearded man. It also showed Islamic headbands and automatic rifles that were apparently carried by the rebels.