At least six people were shot dead on Tuesday in the city of Hama. Some 30 others were wounded during clashes with the Syrian security forces. The Syrian Observatory for Human Rights said residents resisted the Syrian army and tried to keep soldiers out of the city.
Rami Abdel Rahman, head of the London-based Syrian Observatory, told AFP: "Residents have been sleeping on the streets and put up sand barriers and tires to block any assault."
In Idlib province, northwest Syria, activists conveyed security forces on Tuesday carried out a raid on the town of Kfar Nubol. The Observatory, in a separate statement, said more than 500 activists and "peaceful demonstrators" had been arrested since last Friday, including lawyer Mussab Barish who was detained in Idlib on Tuesday.
Security forces also arrested Bissan Hamed and three other activists Friday on their way to Lebanon, it said.