Clashing groups hurled bombs at several villages in Nanoor area of Birbhum district last midnight.
A senior police officer said the clashes started at Karimpur locality and spread to Nahina, Bahiri, Barshimulia, Sultanpur, Papuri pockets under the police station area last midnight.
Vehicles were damaged and a thatched house was set on fire but there was no report of any injury or death, the officer said.
Local people also claimed shots were fired from guns but there was no police confirmation about bullet exchange.
A big force went to the area after 9 am and the situation brought under control.
District Trinamool Congress leaders said the opposition parties were behind the incident and there was no TMC factional feud in the area.
However, some locals claimed the clashes were between rival two TMC groups to have control of the area.
SP Mukesh Kumar said "It was a clash between two groups of miscreants who threw bombs at each other. A big force has been deployed.
