The police helicopter was scrambled in the early hours of this morning to search for four men seen leaving a crash scene.
Police were contacted at 2.20am with reports that a red Honda Accord had collided with a fence in The Street, Latchingdon and that the four occupants, all believed to be men, were seen leaving the scene.
An area search was conducted by the force's helicopter but the men were not found.
Enquiries are continuing.
Anyone with information should contact Essex Police on 101.