A group of Syrian rights activists say Syrian security forces killed 26 protesters in and around the southern town of Daraa on Saturday.
The National Organization for Human Rights in Syria said in a statement Sunday that police and security forces fired live ammunition to disperse peaceful demonstrations in a number of Syrian towns and provinces.
Witnesses say security forces fired at mourners attending funerals for some of the 36 people killed in violence Friday.
Elsewhere Saturday, witnesses in the port city of Latakia said security forces fired shots in an attempt to disperse hundreds of anti-government protesters.
Activists had called for more protests on Saturday, in spite of a government warning against demonstrations.
The United Nations and the European Union have condemned the violence.