A boy of 17 was arrested today by detectives investigating the death of a middle-aged man at his seaside home.
The teenager was held on suspicion of manslaughter after the 49-year-old man suffered a head injury and collapsed.
The victim, who has not been named, died while being treated by paramedics in Valencia Road, Worthing, West Sussex, just before midnight yesterday.
It is understood that the teenage suspect and the victim were known to each other. The boy was arrested at 2am after officers visited another property in Worthing.
Detective Inspector Phil Mays, of Sussex Police, said: "We are treating this as a suspicious death and making detailed inquiries to establish the exact circumstances in which the man died."