"It did not include a location, it did not include specific details", she said, adding that it was sent to security services within two minutes of receipt.
New Zealand's Prime Minister Jacinda Ardern hugged members of the Muslim community at a refugee centre in Christchurch on Saturday, promising she would ensure freedom of religion for all: "I convey the message of love and support on behalf of New Zealand to all of you", she said.
Prime Minister Imran Khan extended "all our support to the families of Pakistani victims of the terrorist attack in Christchurch".
Desperate for any news, families and friends of the victims gathered at the city's Hagley College, near the hospital.
New Zealand Police Commissioner Mike Bush confirmed two of those in custody were arrested at the scene, and that police were working to establish whether they had had any involvement in the incident.
It was "reasonable to assume" Tarrant would face further murder charges, Judge Kellar said.
While known for having more moderate politics, New Zealand has relatively lax gun laws in comparison with its larger neighbour.
"But that arrest was tangential to this matter and we do not believe that he was involved in this attack either", he said.
Last October, a crowdfunding campaign called "Muslims Unite for Pittsburgh Synagogue" raised more than $200,000 in four days for the Pittsburgh shooting victims. "Just helping people is his main thing".
She also signalled that if convicted, he would serve his sentence in New Zealand.
"The terrorist attack appeared to have been carried out by a white nationalist who posted a racist manifesto online and streamed live video of the killings on Facebook", reports The New York Times.
New Zealand has in the past tried to tighten firearm laws, but a strong gun lobby and culture of hunting has stymied such efforts. "That obviously leads to an Australian-based investigation and all of our inquiries here will be absolutely shared and communicated with New Zealand authorities".
Police warned Muslims all over the country not to visit mosques "anywhere in New Zealand" in the wake of the Christchurch attacks. Until Friday, the country's worst mass shooting was in 1990, when a lone gunman killed 13 people in the small town of Aramoana.
Ardern said she had spoken with Trump, who asked how he could help. The number of people injured in the attacks was also 50, of whom 36 remained in hospital.
She also says New Zealand will make "weekly compensation" available to victims' dependents on an ongoing basis. He said the Muslim community and a Pakistani association in the city were assisting in arrangements.
Pence also affirmed USA cooperation in ensuring all the perpetrators were brought to justice.
"Across all religions, our houses of worship are a source of refuge, of prayer, and of love; to see such a heinous and hate-filled act occur in what should be places of peace is the darkest of evils".