At least 1,900 people have been killed in Syria since the peace talks opened in Switzerland more than a week ago, according to a pro-opposition watchdog, dpa reported.
"The toll covers the period from January 22 until midnight of January 30," Rami Abdel-Rahman, the head of the Syrian Observatory for Human Rights, said in a statement.
The dead included 498 civilians killed by airstrikes, shelling and sniper fire.
Some 72 more people have died from starvation due to the regime's siege of rebel-held areas in the outskirts of the capital Damascus, according to the Britain-based observatory.