The incident took place when four youths of Koli community were attacked by members of a minority community at Nageshwar area in Jamnagar, police said.
Enraged over this, some members of the Koli community rushed to one of the minority community members's house and started pelting stones, police said adding that one policeman sustained minor injury in the stone-pelting incident.
A police team rushed to the spot to control the situation, which had become tense after members of both the communities set a car and a motorcycle ablaze.