An investigation is under way after a man died after he was found seriously ill in a caravan in Little Burstead.
Police and paramedics attended the scene in Clock House Road shortly before 4am today but the victim, aged in his 20s and from east London, was pronounced dead at the scene.
Police said the death is currently being treated as suspicious.
Four people were arrested in connection with his death and are currently in custody for questioning.
Two men from Canning Town, aged 29 and 30, a 34-year-old woman from East Ham and a 69-year-old man from Billericay are all being questioned at separate police stations in south Essex.
