A gang member allegedly knocked unconscious a motorcyclist taking part in a memorial ride for late social media star Johnny Danger last month.
Police are seeking witnesses to the assault, which occurred in Hillcrest, a suburb on Auckland's North Shore. It was alleged to have been carried out by a member of the notorious Head Hunters gang on April 27.
The attack took place at about 9:40pm, police say, after one of approximately a dozen Head Hunters gang members taking part in the ride was knocked off his bike by a Nissan ute on Coronation Rd.
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As the ute's occupants got out to check on the motorcyclist - who was left uninjured in the crash - another Head Hunters gang member approached them, punching the driver in the head.
The blow left the driver unconscious and saw him drop hard to the ground. The gang member then punched the ute's passenger twice before jumping on his motorbike and driving away.
The driver was left with bad injuries, police say, and both occupants of the ute are "shaken from their ordeal".
After reviewing CCTV footage, police established that there at least three witnesses to the scene, who they are urging to come forward with their account of what occurred.
"This was an unprovoked, malicious assault and police are looking to identify and hold the person responsible to account," Det Snr Sgt Marcia Murray said.
"We urge them to do the right thing and come forward. We are also asking for anyone who witnessed the ordeal or has any information to contact police."
Anyone with further information on the incident has been urged to call Waitemata CIB on (09) 477 5261, or anonymously contact Crimestoppers on 0800 555 111.
Johnny Danger died in a motorcycle crash on April 25.