Nine persons were arrested in connection with Wednesday's clash in which two persons were killed in Berhampur town, police said today.
All of them, arrested yesterday, belonged to Old Bauri Street of Bada Bazar area, where the incident took place, district Superintendent of Police R K Sharma said.
Police have also seized some weapons including iron rods and bamboo sticks used in the clash.
At least seven more persons were allegedly involved in the incident. "We are trying to arrest them," police said.
It is suspected that an old rivalry between two groups led to the clash.
Fearing gang war, many residents of the area have fled. Police is however taking preventive measures to maintain law and order in the area.