PERTH police have labelled bonnet surfing an act of stupidity after two teenagers were injured on Saturday when they were thrown from a car and run over.
A 17-year-old girl with extensive facial injuries and an 18-year-old man with a suspected fractured ankle remain in hospital after the incident, which occurred about 11pm (WST) on Saturday in the northern suburb of Ocean Reef.
Sergeant David Byrne of Perth's police operations said bonnet surfers put their lives at risk.
"This was not an accident, this was stupidity," Sgt Byrne said.
"They should never have been doing it.
"Standing on a bonnet of a car and being driven along at whatever speed or in whatever circumstances is stupidity.
"It is an exceptionally dangerous action and as for those who think they can do it and nothing will happen to them, they're wrong.
"It will happen. Stop doing it."
The injured teenagers had been standing on the bonnet of a Holden Commodore - allegedly being driven at high speed by a P-plater - when they fell off.
They were then run over by the car, police said.
The car allegedly was being driven by a 17-year-old probationary driver.
"They were standing on the bonnet and then they fell off onto the road and the car ran over them," a police spokesman said.
The girl lost part of her ear and has extensive facial injuries, plus a shattered kneecap and fractured left leg.
"She will be requiring extensive plastic surgery to remedy the injuries to the side of her face," the spokesman said.
The man has a suspected fractured ankle and bruising. Both were taken to the main northern suburbs' hospital Joondalup Health Campus before being transferred to another Perth hospital.
Police confiscated the car and have impounded it for two days under Western Australia's new anti-hoon laws.
The driver is due to appear in Joondalup Children's Court on Tuesday, charged with dangerous driving causing grievous bodily harm.
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