A boy racer event in Porirua ended in chaos after a man was assaulted with a crowbar.
The event was held at Raiha Street on Sunday night with hundreds of attendees.
Police told Newshub it's believed gang members were in attendance.
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"One person reported being assaulted and having his Skyline car stolen. It's believed a crowbar may have been used in the assault," said a police spokesperson.
The victim has a moderate head injury.
"There was a suggestion the victim had swallowed some glass, appears possibly due to a window being smashed."
Police are investigating.
Newshub.