The Mystery Machine has been pulled over on a motorway in Hertfordshire.

A picture, published by police, shows the Scooby Doo-themed van on the hard shoulder of a motorway.

A police officer confronted the driver about whether the vehicle had passed its MOT test.

A Bedfordshire, Cambridgeshire and Hertfordshire Road Policing Unit statement reads: "The Mystery Machine was seen touring Herts today by our officers.

"It was also a mystery as to where the MOT was.

"The driver unfortunately didn't know either.

"Reported for offence."