At least 49 people have been killed in a terrorist attack at two mosques in Christchurch on the South Island of New Zealand, with one of the massacres live-streamed on the internet.

One of the shooters, who filmed the attack using a headcam, was Brenton Tarrant from Grafton in New South Wales. He described himself in a chilling 74-page manifesto as “just an ordinary white man, 28 years old”.

On Friday night, New Zealand Police Commissioner Mike Bush said the death toll had risen to 49. One man, aged in his late 20s, was charged with murder and will face court on Saturday. Mr Bush confirmed three others were also arrested, and "a number of firearms" were recovered from the scene of both attacks.

“Three other people were apprehended - we believe one of those persons, who was armed, who was at the scene, may have had nothing to do with this incident," he said.

Read more: Sydney Morning Herald