Police are hunting for up to six people who attacked a security guard and left him unconscious outside a shopping centre in West Auckland.
Emergency services were called to the Westgate shopping vicinity around 6am yesterday.
Cleaners and members of the public who had arrived to go to a nearby gym found the 21-year-old seriously injured and unconscious lying next to a damaged golf cart.
Police officers placed a cordon on the corner of Fernhill Drive and Westgate Drive as they carried out a forensic scene examination.
Waitakere Police Detective Sergeant Mike Clubb said the worker was taken to North Shore Hospital in a serious condition.