Three people were injured when several rockets were fired on the Russian Embassy and its circumference in Damascus on Wednesday.
The Syrian government, whose representatives had been attending talks with the opposition in Moscow, expressed "solidarity" with Russia and its people on the incident, said a statement issued by Syria's state news agency, SANA.
Meanwhile, some 10 civilians were killed in a car bombing in the southern Reef Daraa district, according to reports.
Several people, including women and children, were critically wounded in the incident, opposition-established Shaam News Network TV said.
Some locals are said to be accusing the government of launching the attack, suggesting that the area has no presence of opposition fighters, according to opposition-controlled Syria Live news agency.