Activists say Syrian warplanes are bombarding suburbs of Damascus as government troops continue an offensive against rebels on the outskirts of the capital.
The Britain-based Syrian Observatory for Human Rights says warplanes on January 4 were hitting Duma, northeast of the city, while army artillery was shelling Daraya to the southwest.
The fighting comes the day after a car bomb at a gas station in Damascus killed at least nine people.
The official SANA news agency blamed the blast on "terrorists," a term officials use to describe rebels fighting against President Bashar al-Assad's regime.
The United Nations estimates that more than 60,000 people have been killed in Syria since protests against Assad's regime began in March 2011.
The conflict is now widely considered a civil war.
Based on reporting by AP and AFP