A 16-year-old boy has been arrested on suspicion of murder after a 51-year-old man was found dead in a residential street in West Sussex.
Sussex Police said it was called to Gladonian Road, in the seaside town of Littlehampton, after the man was found around 6am on Sunday.
Despite the best efforts of paramedics the victim, who was from the town, was pronounced dead at the scene.
His next of kin have been informed and are being supported by specially trained officers, said police.
The teenager remained in police custody on Sunday evening.
Police have appealed for anyone who was in the area on Sunday morning to come forward.
The senior investigating officer, Det Supt Andy Wolstenholme, said: “We understand this is a shocking incident for a close-knit community in Littlehampton; my condolences are with the family and friends of the victim, and anyone affected by this death.
“We are working hard to establish the facts surrounding the tragic events of last night, and need the assistance of the public to do so, especially by calling in if you were in Gladonian Road between midnight and 6am, either on foot or in a vehicle.
“It would also support the investigation if any social media posts did not speculate about what happened. If you have information, please call in to the police and we will take that information from you.”
You can contact police online, or by calling 101 and quoting Operation Sett. You can also contact the independent charity Crimestoppers anonymously on 0800 555 111 or report it online.