Scottish police warned a driver could have been killed after teenagers threw a brick at a vehicle on the M90 flyover between Craigend and Broxden.
Tayside police said the rear window of a car was broken after a brick was thrown from an overpass near Craigie Hill.
Fortunately, the driver of the vehicle was not injured, but police said the driver could have been killed or seriously injured if the front of the car had been hit.
Youngsters seen running away from the scene
Shortly after the incident, a group of young people ran away from the transfer, one of them had blonde hair.
Police Scotland said: “We are currently investigating an incident on the M90 between Craigend and Broxden on Friday 7 May at around 8:10 pm.
“A silver Vauxhall Astra driving north towards Broxden was hit by a brick that was thrown from the flyover near Craigie Hill and smashed the rear window.
“Fortunately, the driver was not injured and was able to drive past safely. A group of teenagers ran away from the transfer, but only one of them was described to us as partially blonde and wore a black top.
“It was an indescribably dangerous and reckless act, as if the front of the car had been hit and the driver could easily have been killed or seriously injured.
“At least one other car stopped at the time of the incident and we would like to speak to the occupants of this car, along with anyone else who may have seen this group on the flyover at the relevant time, especially if someone has a dash cam footage.
“If you have any information that might help us please call 101 or speak to a police officer. Information can also be provided anonymously via CrimeStoppers on 0800 555 111. Our reference is Incident 3538, May 7th. “
It comes after an ambulance technician was killed after an object hit the windshield of an ambulance traveling on the A49 in Hereford, England.
The 999 worker who returned from retirement to help with the coronavirus effort was pronounced dead after the crime scene incident.