Search for A74(M) motorway indecency driver
Police are trying to trace a driver who carried out an indecent act while driving on the A74(M) motorway in southern Scotland.
The incident happened at about 15:30 on Monday between the Abington and Annandale Water services.
A woman was driving a van south on the road when she saw a silver hatchback draw alongside her several times.
She then noticed that the man driving was carrying out an indecent act and reported it to police.
A spokesman said the woman had been "extremely alarmed at the dangerous nature of the driving".
The silver car was last seen leaving the motorway at the Annandale Water services.