The vehicles, on fire on the hard shoulder, causes several miles of traffic queues.
An air ambulance is among the emergency services called to the incident near Chelmsford.
The coins were minted by a Saxon king who could not prevent an upsurge in Viking raids, says expert.
Police say Daniel Odubanjo forced himself into the toilet, before the victim screamed for help.
Police say officers are "pursuing several lines of inquiry to identify and locate further suspects".
A lorry and a van collide on the A12 at Witham.
Detectives appeal for people with information about the collision to come forward.
A total of eight Essex-based winners are named during a ceremony in Hatfield Peverel.
Winners in eight categories will be selected at a ceremony in Hatfield Peverel.
