Law enforcers were called at 03:15 a.m. local time (02:30 GMT) on Sunday to a report of a serious altercation, the police said, adding that it was further reported that "someone was in possession of a knife." Media say that the incident occurred outside a nightclub.
"A man in his 30s was confirmed deceased at the scene … At least seven other men and women have been injured and taken to hospital to receive treatment," the police report read.
A 24-year-old man from Bodmin has been arrested in connection with the incident and remains in custody. The investigation is underway, the police said.