'Crazy drifting' meet-up warningspublished at 08:00 Greenwich Mean Time 15 November 2017
Young people in have been warned not to get involved in a risky driving stunt called "crazy drifting".
It's after a video was posted on the internet showing one of the meet-ups in Worcester.
West Mercia Police has launched an investigation after the YouTube video was watched 11,000 times showing boy racers driving erratically around the city.
It shows them flipping their cars sideways whilst driving at high-speed around traffic islands, and riding quad bikes with the front two wheels suspended in the air.