Members of the ruling Trinamool Congress and the BJP clashed in Bongaon in North 24 Parganas district of West Bengal Tuesday over a no-confidence motion in the civic body, police said.
There were, however, no immediate reports of any injury or arrest in the incident.
Police said bombs were hurled during the clash which took place in front of the Bongaon Municipality office.
Following the incident, prohibitory order under Section 144 of the CrPC was clamped and rapid action force personnel were deployed, police said.
Patrolling by security forces is on in the area.
Also Read: Local SP leader shot dead