Nearly 200 combatants on both sides were killed in 24 hours when the Syrian branch of Al-Qaeda took two regime bases in Idlib province, a monitoring group said on Tuesday.
The Syrian Observatory for Human Rights, which is based in Britain but gleans its information from a wide network of activists and medics on the ground, said Al-Nusra Front attackers also captured at least 120 regime soldiers.
Seizing the key Wadi al-Deif and Hamidiyeh military posts on Monday also gave the jihadists control of most of the northwestern province.