Sri Lankan police on Sunday imposed curfew with immediate effect in the country's western coastal town of Chilaw after a mosque and few shops owned by Muslims were attacked by a mob, authorities said.

The curfew has been imposed till 6 am Monday as a precaution, the police said. Additional troops have been deployed in the city to bring the situation under control, they said. Tension was brewing since Saturday between the Catholics and Muslims in the Christian dominated town. This is a fallout from the Easter Sunday attacks in which over 250 people were killed.