A police officer pulls a suspected Christchurch mosque gunman from his car before arresting him at the roadside in dramatic footage.
A passing motorist happened to catch the moment a man is arrested on camera.
The footage shows the gunman’s white station wagon wedged between the gutter and another police car, with its front wheels spinning in the air.
The mass murder suspect is inside the car as the two officers approach the car weapons drawn.
The police car rammed the other vehicle, forcing it to stop
The footage was taken by a passing motorist showing the moment of arrest
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Both officers would have known the risk that the suspect would have been carrying multiple high-powered weapons.
One officer reaches inside the vehicle and drags the driver out.
The footage also shows the officer hit the man, who is wearing dark clothing.
Three men and one woman are been arrested over the horrific shooting that’s left 49 dead and 48 injured.
The moment police detain a suspect in the Christchurch mosque attacks
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A man in his late 20s has been charged with murder and will appear in court tomorrow.
One gunman, who identified himself as Australian man Brenton Tarrant, 28, used a GoPro to film himself driving to the mosque listening to folk music with at least six weapons on the floor of his car and others in the boot.
Tarrant also posted a 73-page ‘manifesto’ called The Great Replacement to Twitter before the killings, describing them as a ‘terrorist attack’.
In the manifesto, where he also identifies himself as a white supremacist, he claims he’s of ‘English, Scottish and Irish stock’.
Brenton Tarrant is in police custody
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Prime Minister Jacinda Ardern earlier said at least 20 other people had been seriously injured, and described it as "one of New Zealand’s darkest days", adding: "What has happened here is an extraordinary and unprecedented act of violence."
She added: "It is clear that this can now only be described as a terrorist attack."
Mr Bush said the man charged with murder is expected to appear in court on Saturday morning.
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Australian Prime Minister Scott Morrison earlier said one of the people arrested was an Australian citizen, and described the suspected attacker as an "extremist right-wing violent terrorist".
In the video live-streamed by Tarrant, a man inside a mosque appears to say "Welcome brother" as a gunman approaches.
Mr Bush said three other people were apprehended, adding: "We believe one of those persons, who was armed and was at the scene, may have had nothing to do with this incident.
A view of the Al Noor Mosque on Deans Avenue
"And the two other people that have been apprehended, again in possession of firearms in the general environment, we are working through to understand what their involvement is.
"We have recovered a number of firearms from both of the scenes."
Mr Bush said the attack was a "very well-planned event".
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Everything we know so far