Around 130 people, including 62 civilians, have been killed in violence across Syria today, the UK-based Syrian Observatory for Human Rights claimed.
Some 200 people were killed throughout the country on Wednesday, according to the Observatory.
Troops loyal to President Bashar al Assad hammered the town of Daraya - located on the outskirts of Damascus - today and yesterday, killing at least 25 people and wounding another 200, opposition sources told the Reuters news agency.
Locals said soldiers raided houses and used mortar bombs in the streets as artillery and helicopters continued the assault on the town, meeting little resistance.
In Aleppo, tank shells crashed into buildings as civilians returned to check their houses and grab their belongings.
The son of late Chechen warlord Ruslan Gelayev has been killed in Syria by regime forces, according to Russian news reports.
However, the details of how and where Rustam Gelayev, 24, died differ.
Chechenews.com claims Mr Gelayev was killed earlier this month during the shelling of an Aleppo mosque after he joined a unit of volunteers fighting alongside the insurgents.
Kavkazcenter.com reported Mr Gelayev died when his unit "entered into a battle with superior forces of the Alawite regime".
However, Russian newspaper Kommersant, citing a relative, said Mr Gelayev had been studying in Syria when he decided to leave because of the violence. He was on his to Turkey when he was killed, according to the report.
Syrian forces backed by tanks have stormed Daraya, on the outskirts of Damascus, after 24 hours of artillery and helicopter bombardment to drive out rebels, opposition sources have told Reuters.
The bombardment killed at least 15 people and wounded 150 in Daraya, situated on the southwest edge of Damascus, the sources said.
Troops were conducting house to house raids in the conservative Sunni Muslim town and making their way to the town's centre, meeting light resistance from rebels who appear to have largely withdrawn from the area, activists in Damascus said.