A 21-year-old was hacked to death and two others including a doctor were hospitalised following a brawl between two groups at Kepungoda in Dungalpitiya last night.
Police said the clash took place due to a dispute over a fishing boat.
The injured were admitted to the Negombo Hospital and one of them, a resident of Kepungoda succumbed to his injuries.
It was reported that the injured doctor (34) and the deceased youth were assaulted when they tried to settle the dispute.
Hospital sources said that the injured were in critical condition.
The Police arrested a suspect in connection with the incident.