Many of the deaths reportedly occurred in the village of Ezra and in the Douma suburb of the capital, Damascus.
At least 260 people are said to have died since unrest began last month.
Protesters across the country chanted for the overthrow of the regime, Reuters news agency reported.
President Bashar al-Assad’s lifting of the emergency had been seen as a concession to them.
In their first joint statement since the protests broke out, activists co-ordinating the mass demonstrations demanded the establishment of a democratic political system.