Police are concerned for the safety of a Glen Eden paramedic, who hasn't been seen since Wednesday.
Ross Tomlinson, 29, was last seen in Henderson about 9am on Wednesday, Detective Chris Cooper said, and his last known movements were in West Auckland later that morning.
Cooper said police have concerns for his welfare.
Police are also looking for his vehicle, a grey Nissan Navara Utility with a rear canopy, registration JQR185.
The Herald understands Tomlinson is a paramedic with St John Ambulance.
Spokeswoman Victoria Hawkins said St John is aware of the situation.
Anyone with information about Tomlinson or his whereabouts is urged to contact Henderson Police immediately on (09) 839 0600.