Video footage appears to show the moment brave police officers made an arrest after a terror attack at two New Zealand mosques.
Forty nine people have been killed and more than 20 wounded in the massacres in Christchurch.
A video posted on YouTube by witness Nathan Cambus shows two armed police officers approaching a car that has been pushed off the busy road by their police car.
Pointing their guns at the passenger side, the footage then shows them dragging a person out onto the street.
The officers then appear to handcuff the person. Four people have been arrested by police in connection with attack. The shooting suspect has been named in reports as 28-year-old Australian man Brenton Tennant.
The shooting at one of the mosques was broadcast live on Facebook. The shooter left a 74-page anti-immigrant manifesto in which he explained who he was and his reasoning for the attack.
The three other people arrested were two men and a woman.
One suspect has been charged with murder.
New Zealand prime minister Jacinda Ardern said the attacks marked one of New Zealand's "darkest days".
She said the events represented "an extraordinary and unprecedented act of violence," and that many of the victims could be migrants or refugees.
While there was no reason to believe there were any more suspects, Ms Ardern said the national security threat level was being raised from low to high, the second-highest level.
Police said the investigation had extended 240 miles to the south, where homes in Dunedin were evacuated around a "location of interest." A police statement gave no further detail of how it might be linked to the attacks.
National carrier Air New Zealand cancelled at least 17 flights in and out of Christchurch, saying it couldn't properly screen customers and their baggage following the shootings.
