The attack on Muslim worshippers in Christchurch was the worst mass shooting in New Zealand's history.

The white supremacist who murdered 51 people at two mosques in New Zealand is appealing against his conviction.

Brenton Tarrant, 32, has filed an appeal against his case and sentence, court officials said. No hearing for the appeal has been set at this stage.

Tarrant was jailed to life without parole in 2020 for the murder and attempted murder of Muslim worshippers.

Tarrant, an Australian national who moved to New Zealand in 2017, stormed two mosques in the southern city on 15 March 2019, armed with military-grade semi-automatic guns.

He had the intention of killing as many Muslim people as he could, his trial heard in 2020. He livestreamed the attack on Facebook

Prime Minister Jacinda Ardern said he was attempting to "revictimise people". Her government refuses to publicly name Tarrant to deprive him of any platform or notoriety.

Imam Gamal Fouda, a survivor of the attack at the Al Noor mosque in Christchurch, said he was "struggling to understand" a motive for Tarrant to appeal given "he himself pleaded guilty".