UPDATED 2.41PM - Police have released the name of the homeless man who was attacked in Auckland's Myers Park last night, before dying in hospital.
He was 54-year-old Steven Harris.
Police say they are still investigating his death and examining the scene, though they hope to reopen most of the park to public this evening.
Murdered man was sleeping rough, say police
Police say the man killed in an attack at a central Auckland park was sleeping rough.
The 54-year-old homeless man died from a wound to his torso.
Acting Detective Inspector John Sutton says at this stage he can not say what caused that wound.
He says three Asians, two men and a woman, witnessed the Myers Park attack.
"They're still in the process of being interviewed, so what I can tell you is that they've seen an assault take place, or an attack.
"The victim fell to the ground, and have gone to assist that victim along with the police when they attended."
John Sutton says a man was seen leaving the park in the direction of Karangahape Road after the attack.
"There may be some CCTV footage available as the day goes on if we are able to identify any, and that's in the process of being done now.
"There's going to be a number of addresses that we'll be visiting - private businesses and shops as well."
Man last seen running towards K Road
Auckland police are hunting for a man last seen running towards Karangahape Road after a fatal attack in a central city park.
Inspector Steve Kose says emergency services were called to Myers Park after 11.30 last night.
He says St John Ambulance took a patient in critical condition to Auckland Hospital.
"Medical staff have worked on the victim to save his life, but sadly he has died as a result of a serious assault wound."
A homicide investigation is underway.
Police seeking witnesses
Inspector Kose says the attack took place between 11.30PM and 11:45PM.
Witnesses saw a suspect run up Myers Park, towards Karangahape Road.
They are described as probably male, described as short and of medium build, wearing a white hat, cream top and dark coloured jeans.
Police are asking any witnesses to come forward.
No link with nearby July murder, say police
Despite last night's attack, police in Auckland don't believe homeless people are being targeted in the city.
In July, Edwin Linder was found unconscious in Mills Lane - just a few blocks from Myers Park - and later died in hospital of his injuries.
A 17-year-old has been charged with his murder.
Central Area Commander Inspector Andrew Coster says there is no connection.
"There's absolutely no indication that there's any kind of link.
"In fact, we're confident that there is no link between a recent incident, and the one overnight."
Park closed for examination
Police have closed Myers Park in Auckland's central city after a fatal attack last night.
Forensic experts are preparing to begin a scene examination in the hope of finding clues that will help identify the attacker.
That could take several hours, and pedestrians who usually cut through the park on their way to and from work are asked to take another route instead.
The attack happened at the northern end of the park, beneath the Mayoral Drive overbridge.
The park runs from there to Karangahape Road, behind Queen Street.
Police advise it could be several hours before the area is open to the public again.
Photo (top): The murdered man Steven Harris / supplied