CHRISTCHURCH/WELLINGTON, New Zealand (Reuters) – Australian Brenton Harrison Tarrant, 28, a suspected white supremacist, was charged with murder on Saturday after 49 people were killed and dozens wounded in mass shootings at two New Zealand mosques.

Tarrant, handcuffed and wearing a white prison suit, stood silently in the Christchurch District Court where he was remanded without a plea. He is due back in court on April 5 and police said he was likely to face further charges.

Friday’s attack, which Prime Minister Jacinda Ardern labeled as terrorism, was the worst ever peacetime mass killing in New Zealand and the country had raised its security threat level to the highest.

Footage of the attack on one of the mosques was broadcast live on Facebook, and a “manifesto” denouncing immigrants as “invaders” was sent to politicians and media outlets and posted online via links to related social media accounts.

The video showed a man driving to the Al Noor mosque, entering it and shooting randomly at people with a semi-automatic rifle. Worshippers, possibly dead or wounded, lay on the floor, the video showed.