A suspect is still at large after a person died of stab wounds in an attack on a bus in Auckland's Onehunga

Emergency services transported one person to Auckland Hospital in critical condition at about 2:30 where they later died.

Inspector Danny Moore says the victim had stab wounds in the upper body.

Police say they've identified one suspect through CCTV who fled the area after the incident, and is believed to be in the local area.

Police Minister Mark Mitchell says his thoughts are with the family of the victim of the senseless homicide.