A lorry driver was robbed at gunpoint whilst parked in a lay-by off the A12 in Witham.
It happened on Monday evening (April 23) around 11.30pm on the southbound side of the dual carriageway.
Two men dressed in dark clothing and with their faces covered, approached a lorry which was parked near to Little Braxted Lane, Rivenhall.
Essex Police said: "One of the men, who was described by the victim as being around 5ft 6ins and in his early to mid-30s, threatened the lorry driver with what was believed to be a firearm, whilst the second man broke into the vehicle trailer."
“No one was injured during the incident and investigations are ongoing into whether anything was stolen. ”
Officers are appealing to anyone who was driving in the area at the time and has dashcam footage.