Damascus, Sep 15 (IANS): At least 21 people were killed and over 100 others wounded on Tuesday in a fresh rebel mortar attack against government-controlled areas in Syria's northern province of Aleppo, the state-run TV said.

The jihadi groups fired multiple mortar rounds into residential areas in Aleppo city, mainly the districts of Hamadiniyeh, Akramiyeh, and New Aleppo, said the TV, adding that the toll could rise due to the large number of critically wounded people.

The hospitals of Aleppo were filled with the large number of wounded people, and the TV aired footages from inside hospitals, showing tens of wounded people getting medical treatment, Xinhua reported.

It said that the mortar attack was intense, and paramedics are still removing the bodies which were buried under the rubble. Tuesday's attacks targeted a number of schools in Aleppo.

Citing its reporter, the TV said huge destruction has befallen the city, and that the rebels were attempting to divert the attention of the Syrian army to carry out attacks against government-controlled areas of Aleppo.

Aleppo, Syria's second largest city and once an economic hub, has become carved out between Syrian government in the western parts and the rebels in the east.