Syrian protesters have again called for international protection from NATO, in the form of a no-fly zone similar to the one imposed over Libya.
It comes as human rights activists say 30 people have been killed by the security forces amid the weekly Friday prayers demonstrations.
Rallies have again taken place in several cities, with demonstrators demanding President al-Assad’s resignation.
The London-based Syrian Observatory for Human Rights says 20 were shot dead in Homs and eight in Hama, where clashes were reported between army deserters and the military.
In Damascus young people demonstrated despite a heavy security presence.
In the northwest near the Turkish border activists say the military carried out raids, arresting 13 people including a woman and a child.
China’s Middle East envoy, who is in Syria, has called for the violence to stop. An Arab League delegation is due to meet Assad on Sunday for the second time in a week.