Handcuffed and wearing a white prison suit, Tarrant did not speak.
The victim can not be named by order of the court.
As for the suspects, Ardern said, "these are people who I would describe as having extremist views that have absolutely no place in New Zealand".
Three people were arrested in connection with the shootings. Worshippers, possibly dead or wounded, lay on the floor, the video showed.
Brenton Tarrant, charged for murder in relation to the mosque attacks, is lead into the dock for his appearance in the Christchurch District Court, New Zealand March 16, 2019. The other two remain in custody but their role in the shootings remains unclear.
AOS (Armed Offenders Squad) push back members of the public following a shooting at a mosque in Christchurch, New Zealand, Friday.
New Zealand is generally considered to be a welcoming country for migrants and refugees.
He sustained a head injury, which was not believed to be serious, and was kept in hospital for treatment, the police added. Funerals were planned on Saturday for some of the victims, several of whom were born overseas.
In 2011 Breivik massacred 77 people, shooting to death 69 participants in a summer camp on a Norwegian island, and killed eight others by detonating a van bomb in the middle of Oslo.
New Zealand tightened its gun laws to restrict access to semi-automatic rifles in 1992, two years after a mentally ill man shot dead 13 people in the southern town of Aramoana.More news: Golden Tate Reportedly Down to Patriots and Steelers in Free Agency
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The suspected gunman livestreamed video of the attack and posted a lengthy manifesto online under the name of Brenton Tarrant. Ardern said she had spoken to Trump, who had asked how he could help. In fact, right now, I'm sure New Zealand would like me to share a message on their behalf too.
I have spoken this evening to the mayor of Christchurch and I intend to speak this evening to the Imam.
In France, home to western Europe's largest Muslim community, Interior Minister Christophe Castaner ordered regional authorities to bolster security at mosques as a precaution.
Political across Asia and the Middle East voiced concern over the targeting of Muslims.
Nine people from India or of Indian origin have gone missing, the Indian envoy in New Zealand has said.
World leaders and religious figures expressed their sorrow at the killing, which targeted women, children and men as they prayed in their place of worship.
"He had a big gun". Five other Pakistani citizens were still unaccounted for, he said.
Facebook said it had deleted the gunman's accounts "shortly after the livestream commenced" after being alerted by police.
Taliban spokesman Qari Mohammad Yusuf called on the New Zealand government to investigate "the root cause of such terrorism and hand a hefty punishment to the attackers".
A further eight people were killed at Linwood Ave mosque, seven minutes after the first attack. One more died in hospital, where another 48 wounded are still receiving care, two in a critical condition. In a statement, according to The Associated Press, Facebook New Zealand spokeswoman Mia Garlick said that the company is "also removing any praise or support for the crime and the shooter or shooters as soon as we're aware".
As you can imagine, more people are reading The Jerusalem Post than ever before.