A CAR was damaged on the M25 after vandals threw an object from a bridge near Potters Bar into oncoming traffic.
Police have called for witnesses to track down the people responsible, who struck on Saturday.
It happened at 10pm on the bridge between Potters Bar and South Mimms, Junctions 24 and 23.
The windscreen of a white BMW was damaged.
It is not known what the object was, and the thrower got away.
Anyone with information should contact PC Jonathan Singleton by calling 101, citing crime reference number J3/13/371.
Or call Crimestoppers, anonymously, on 0800 555111.