A man claiming to be a taxi driver climbed into the back seat before taking pictures of himself with two female passengers he had picked up in the early hours.
Police are appealing for witnesses following the suspicious incident which took place on Sunday, September 16, between 3am and 4am in Silver Street, Wellingborough.
Two women left Fever nightclub shortly after 3am and got into what is believed to be a black taxi.
The driver stopped in Oxford Street near to Morrisons and got into the back of the taxi where he took pictures of himself with the women.
He then got back into the driver’s seat and drove on.
The women asked to get out of the car, but the driver replied that they couldn’t as the doors were locked.
The women asked to be taken to McDonalds, and the driver drove to the one on the A45.
At this point the women attempted to leave the car but were unable to due to the locked doors.
They started shouting, at which point the driver got out and opened the door.
The driver then drove off without requesting a fare.
He is described as an Asian man, late 30s to early 40s, slim build, short dark hair, quite tall and wore a blue hooded top.
A police spokesman said: “We are appealing for any witnesses to this incident or the driver himself to come forward so that we can establish the facts of what happened.
“We would advise women to always pre-book taxis with reputable taxi and under no circumstances to flag down taxis.”
Witnesses to this incident, or anyone with information about it, can call Northamptonshire Police on 101 or information can be given anonymously to Crimestoppers on 0800 555111.