Tarrant's occupation was not given on the charging document, and his address was provided as a place in Dunedin, more than 300 km south of Christchurch in New Zealand's South Island. He also published a 74-page white nationalist manifesto in which he denounced Muslims and called immigrants "invaders".
A video live-streamed by him on Facebook showed him rapidly firing what appeared to be hundreds of bullets at his defenseless victims using various weapons. Worshippers, possibly dead or wounded, lay on the floor, the video showed.
At one stage the shooter returns to his auto, changes weapons, re-enters the mosque and again begins shooting. 41 of the victims were killed at Al Noor mosque on Deans Avenue and seven died at Linwood mosque.
Mr Bush said police would not release a list of the victims until they had been formally identified. No images have emerged from there.
Ardern's chief press secretary Andrew Campbell told CNN that the email in a "generic" email account maintained by staff, and was not seen by the Prime Minister.
The President of French Polynesia, Edouard Fritch sent a message of support to New Zealand Prime Minister Jacinda Ardern, following the attack in Christchurch. Authorities were working to find out how he had obtained the weapons and a license, and how he was able to enter the country to carry out the attack, she said.
"It's been 36 hours, I haven't heard anything about them", he said.
An interfaith prayer session outside the Christchurch memorial, following the shooting.
A total of four people were arrested in connection with the incident - one of whom was in possession of a firearm but with the intention of assisting police was released a short time later.
None of those arrested had a criminal history or were on watchlists in New Zealand or Australia.
"A category-A firearm holder can purchase the firearms without the magazines or the things that will enable them to be in the state that they were", Bush said. Christchurch Hospital on Saturday said most of the victims were men aged between 30 and 60, but children and women were also involved.
"We know that there's been young Somalis that have lost their life, people of Turkish backgrounds that have been injured", he told NPR's Weekend Edition from the airport, on his way to Christchurch.
"Hi guys how are you".
Pakistan's High Commissioner said six citizens had been killed and three were missing.
Dozens of people laid flowers at cordons near both mosques in Christchurch, which is still rebuilding after an natural disaster in 2011 killed nearly 200 people.
"I'm not sure how to deal with this".
"She came here for the peace.now she is shocked", he said, adding his mother was too afraid to leave her house. Prime Minister Narendra Modi Friday wrote to his New Zealand counterpart expressing his deepest condolences to the bereaved families of the victims.
Brenton Tarrant used two semi-automatic weapons, two shotguns and a lever-action firearm in the attack.
She is calling for gun reform in the wake of the killings. "That obviously leads to an Australian-based investigation and all of our inquiries here will be absolutely shared and communicated with New Zealand authorities". Armed police were deployed at several locations in all cities, unusual in a country where levels of gun violence are low.
Watch: PM Ardern's comments on tightening gun laws. Tarrant did not apply to have the judge suppress his name from the media, Australian broadcaster ABC reports. Neighboring Australia has virtually banned semi-automatic rifles from private ownership since a lone gunman killed 35 people with assault rifles in 1996. The minimum legal age to own a gun in New Zealand is 16, or 18 for military-style semi-automatic weapons.
Leaders around the world expressed sorrow and disgust at the attacks, with some deploring the demonisation of Muslims.
US President Donald Trump, who condemned the attack as a "horrible massacre", was praised by the accused gunman in a manifesto posted online as "a symbol of renewed white identity and common purpose".
"You may have chosen us", Ardern said, addressing the suspect.
Sanjiv Kohli, the Indian diplomat, tweeted after the attack on Friday: "As per updates received from multiple sources there are 9 missing persons of Indian nationality/origin".
He said the Fijian people stood with their Pacific family in this time of suffering and sadness, and we condemn all forms of hatred and terror.
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