Syrian forces backed by tanks moved early Saturday into the coastal city of Banias. According to AFP, electricity and communications were cut as the tanks entered the city.
Protesters were resisting by forming human chains, anti-regime activists said.
Human rights groups claim that some 800 people have been killed and 8,000 jailed or gone missing in the crackdown on protesters since demonstrations started in mid-March.
The United States warned Friday it would take “additional steps” against Syria if it continues its brutal crackdown on protesters.