Story and video from SWNS
Footage has captured a dramatic police car chase and its terrifying aftermath, following a crash which left four teenagers with injuries.
Two 14-year-old girls were seriously injured in the crash following a police pursuit, and two boys in the car - 14 and 16 - were treated for minor injuries.
They were said to be travelling in the car which crashed on the A90 near St Madoes, Perthshire, on Saturday afternoon, and allegedly failed to stop for police.
Lorry dashcam video shows police pursuing an orange Vauxhall Corsa and then the wreckage of the car as it lay on its side on the grass verge.
Police Scotland said four teenagers were inside the car and all were rushed to Ninewells Hospital in Dundee for treatment.
Emergency services flocked to the scene and the road was closed just before 2pm.
The lorry driver, who did not wish to be named, said: “I am restricted to 50mph and they came flying past me. They must have been doing 80.
“I don’t know what happened because they were ahead of me and by the time I arrived at the scene, the car was on its side.
“I can only imagine they’ve tried to take the junction too quickly and the car has hit the grass verge and flipped.
“It looked like it had rolled a few times to me. It was on its side.
“There were six ambulances and two rapid response vehicles and lots of police.”
Vehicles were stranded on the stretch of road for hours while police cleared the wreckage.
The driver added: “It was pretty scary to be honest.
"There were so many cars on the road, any of them could have been taken out in the crash."
Police Scotland appealed for witnesses.
Sergeant Michelle Burns said: "Our inquiries into this incident are ongoing and we would urge anyone who may have seen the Vauxhall Corsa or the police vehicles in Perth, on the A912 through Bridge of Earn or on the A90 are asked to come forward.
"We would be particularly keen to speak to anyone with dashcam footage.
"Any information can be passed to police by calling 101, quoting incident 2040 of 20 February."