DAMASCUS, Jan. 11 (Xinhua) -- Three humanitarian corridors will open for civilians wishing to leave rebel-held areas in the northwestern province of Idlib on Sunday, a military official told Xinhua on Saturday.

The corridors are being prepared for the civilians who are willing to leave rebel-held areas to government-controlled ones in Idlib, which is part of implementing a truce in that part of the country, the source said on condition of anonymity.

The corridors will be open in the city of Habit, south of Idlib, Abu al-Duhur, east of Idlib and al-Hadir, in the southern countryside of Aleppo province.

The move comes as Russia and Turkey have mediated a new cease-fire in Idlib last week, following several attempts to establish a cessation of hostilities for no avail.

The Syrian army has made notable progress in recent weeks in the battles against the rebels in Idlib, capturing several areas in the quest to liberate the road linking Hama province with Aleppo in the north.

Syrian President Bashar al-Assad said recently that the battle against terrorism in Idlib is a priority to the Syrian government.

Assad said the aim behind the battle in Idlib is to eliminate terrorism.

Idlib has emerged as the main destination of the rebel groups, which have evacuated several positions across Syria after surrendering to the Syrian army.

That province is now considered as the last major rebel bastion in Syria.

Certain parts of Idlib are covered by a de-escalation zones' deal brokered by Russia and Turkey, which backs the rebels.

However, such deals exclude the ultra-radical rebels who are affiliated with the al-Qaida and branded as terrorist groups by the UN.