UPDATE: Syria rebel chief killed in Aleppo air raid

At least 11 people, including a rebel chief, have been killed
after government airstrikes battered an opposition-held
district in the northern Syrian city of Aleppo, local
sources told Al Jazeera.
Nabhan Satuf, a leader of the Ahrar al-Sham
(Liberation of Damascus) rebel group, was among those
killed in the attack on Andan on Sunday, the sources said.
Activists said there was an increase in raids by
government warplanes in Aleppo’s rebel-controlled
outskirts in retaliation for recent attacks on the
predominantly Shia villages of Nubul and Zahraa.
The heightened violence came as a woman and her three
sons were killed in the government-held side of Aleppo
city by rebel-fire, the Syrian Observatory for Human
Rights said.
The woman and her children were killed when a
homemade rocket fired from the rebel-held east of the city
hit their home in Ashrafiyah district.
The UK-based rights group said fighters were firing
homemade explosive devices often using gas canisters that
were more damaging than regular mortar fire.
Aleppo, Syria’s second city and former industrial
powerhouse, has been divided between rebel control in the
east and government control in the west since fighting
began there in 2012.
Since 2013, the Syrian air force has regularly dropped
explosive-packed barrel bomb, which rights groups criticise
as indiscriminate, on the rebel-held east and areas
surrounding the province.
The barrel bomb attacks have killed several thousand
people in Aleppo province, according to the Observatory.
In recent months, rebels have intensified their mortar
attacks on the government-held west of the city, killing
nearly 300 people in four months, the group said.