Police say they are continuing to question a 46-year-old man from Southsea on suspicion of murdering David Guy - who's torso was found wrapped in a curtain on the beach, last Tuesday.
Magistrates granted Hampshire Police a further extension to question the suspect until 7.41pm this evening.
Officers are asking anyone with information that could assist their investigation to contact them, or call Crimestoppers anonymously on 0800 555111.
Detectives have released a photo of a bike seen in Southsea, which could help them with the body on the beach murder inquiry
Detectives have been given more time to question a man arrested on suspicion of murder, as they identify the victim