DAMASCUS, Nov. 24 (Xinhua) -- At least 31 civilians suffered suffocation as a result of a rebel attack with "poisonous gas" in Syria's northern city of Aleppo, state TV reported.

The rebels fired projectiles stuffed with "poisonous gas" against the al-Khalidiyeh and Zahraa neighborhoods as well as the Nile Street in Aleppo city, said the report.

It said 31 people suffered suffocation and were taken to the hospitals, adding that two of them are in critical conditions.