A 26-year-old man from Billericay has been arrested on suspicion of drink driving, following a fatal accident on Roxwell Road on Monday.
The man was also arrested on suspicion of causing death by careless driving following the incident in which a pedestrian was knocked down and killed at around 6am.
He has since been released on bail pending further investigation until April 10 next year.
Is it thought that the pedestrian, who witnesses say was wearing a white shirt, was walking towards Chelmsford. He was pronounced dead at the scene, and his relatives have been informed, police said.
A resident, who did not want to be named, said that the road had been pitch black at that time in the morning, and added that it was viewed as too dangerous to walk along by most people living in the area due to the lack of a footpath.
The road was closed for around five hours, and police would like to speak to any witnesses or anyone who may have seen a man in a white shirt walking along the A1060 early that morning.