Syrian State Televisions airs footage of the aftermath of a bomb attack in Damascus. At least 25 people were killed and more than 60 wounded, in the third such attack in the Syrian capital in a month.
The blast comes two days ahead of an Arab League committee initial report on whether President Bashar al-Assad is complying with a peace plan.
Syria's Interior ministry said it would respond to the attacks with a quote "iron fist."
Amateur video out of Syria shows demonstrators still out in force in Hama.
The video, which could not be independently verified by Reuters shows a demonstration breaking up amid the sound of gun fire.
Activists say security forces killed four protesters in Hama Friday.
Footage purportedly from Homs shows more demonstrations.
The United Nations says that more than 5,000 people have been killed in Syria since the uprising began last March. The government blames the violence on foreign backed insurgent groups.
More footage shows a funeral service in Damascus. The violence in Syria has raged unabated since the Arab monitors arrived last week, with scores of people reported killed.
The Arab League's special committee on Syria is due to meet in Egypt on Sunday to debate the initial findings of the mission. Their work has come under criticism by Syrian activists who question the League's ability to assess the violence on the ground.
Deborah Lutterbeck, Reuters.