At least 15 civilians are killed and some 100 others injured as foreign-backed militants shell western Aleppo after launching a massive offensive to break the Syrian government's siege over the city.
A UK-based monitoring group sympathetic to the militants said hundreds of shells and rockets had fallen on various western neighborhoods of the city on Friday.
Militant groups involved in the attack include Turkey-backed FSA and Jaish al-Fatah, an alliance of terrorist factions actively supported by Saudi Arabia and Turkey, they told news agencies.
A senior militant said it was going to be "a big battle" with all the groups there participating.
The attack appeared to have been mostly launched by militants from outside the city against government forces that hold its western districts, Reuters news agency reported.
The so-called Syrian Observatory for Human Right said militants had set off several car bombs on the western edge of Aleppo after launching grad rockets at the city's Nairab airbase.
Heavy militant bombardment, with more than 150 rockets and shells, struck districts on the southwest of the city, it said.
The Syrian military said a militant attack in that area had been thwarted and the army had destroyed four car bombs.
