A man has been arrested on suspicion of murder after a body was found following a fire in a flat, police said.
Essex Police were called by the fire service to Station Road in Clacton shortly before 07:00 GMT.
Emergency services attending said when they entered the flat they found a man who had been assaulted.
Det Ch Insp Martin Pasmore said the investigation was in its early days "but we are looking at the possibility this was a targeted attack".
The man was pronounced dead at the scene.
Officers are appealing for witnesses to come forward.