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Police have told Radio New Zealand the person shot and killed on the Northwestern Motorway this afternoon was not the offender.
A St John Ambulance team leader told nzherald.co.nz by the time ambulance got to the scene one man was deceased and another had minor injuries.
The fatal shooting came after a high speed police chase that ended on Auckland's Northwestern Motorway.
An eye witness told nzherald.co.nz that he saw an armed man being taken from a truck on the other side of the motorway to a white van.
The man, who does not want to be named, said he saw a Skyline smashed up and the van parked up on the median strip.
"He had a gun in his hand and he was trying to get into the truck but by the time he got around there, three armed offenders had come around the back way and more had jumped over the barrier," he said.
The witness said he heard three shots - "bop, bop, bop" before he saw police drag a man to the white van.
"From where I was you could see he had been shot because he had white first aid stuff up around his chest and there was red on that area," the man said.
There were intially reports that two shots were fired and a man had been taken into custody.
A Herald photographer at the scene said he could see the feet of an unmoving person visible from a white van.
Earlier the police pursued the man in a 40 minute chase through Auckland's central suburbs before heading onto the Northwestern Motorway.
It appears the man headed out of the New Lynn-Glen Eden area and drove along Great North Rd.
He was later sighted at the intersection of Sandringham Rd and New North Rd, when the Skyline raced down Bond St. before heading out west to the Northwestern Motorway.
The motorway in both directions is blocked and several areas near the St Lukes on-ramp have been cordoned off.
Police are investigating and members of the Armed Offenders Squad have been involved since a vehicle was stolen in west Auckland shortly after 1pm.
Callers to Newstalk ZB report seeing a grey Nissan Skyline car crashed into a fence on the Northwestern Motorway near the Western Springs off-ramp.
When the chase ended, witnesses reported seeing a man try to hijack a truck.
A total of 20 police vehicles and the police helicopter are thought to have been involved in the chase.
TVNZ said there were reports the incident began when a man tried to steal a handbag. He was then said to have got into a car and driven off.
He is reported to have ditched the car in Titirangi before getting into a Skyline, TVNZ said.
Police shut the motorway with one witness describing it as "looking like a carpark".
- NZ HERALD STAFF