The Prime Minister has described Australian Senator Fraser Anning's comments after the Christchurch terrorist attack as "a disgrace", during a press conference today, where she also announced national commemoration services details are being "actively" considered.
Jacinda Ardern also told media a copy of the suspected perpetrator's manifesto was sent to 30 email addresses, including her public email address, nine minutes before the attack.
"The fact there was an ideologist manifesto with extreme views attached to this attack, of course is deeply disturbing."
She said she could not give any details on deportation of the alleged offender, however he would "certainly face the justice system of New Zealand".
"Absolutely charges and the trial itself will happen in New Zealand. As for the remainder, I'm seeking advice. He will certainly face the justice system of New Zealand for the terrorist attack."
The accused, Brenton Tarrant, is being held in a specialist security facility and will face further charges. Another person has been taken into custody as a result of evidence collected during the investigation, Ms Ardern said.
"But there is no information to suggest that person is linked to the attacks."
It comes as the bodies of the 50 victims in the attacks are beginning to be returned to the families this evening.
"They were loved ones and they were New Zealanders," Ms Ardern said.
"It is likely to be a small number to begin with. The expectation is that all bodies will be returned to families by Wednesday," she said.
Thirty-four people remain in Christchurch Hospital and a four-year-old girl is in a critical condition in Starship Hospital in Auckland.
Read: 1 NEWS' live updates after 50 people were killed in a terrorist attack at two mosques in Christchurch on Friday afternoon.
Fraser Anning, a Queensland senator, caused outrage after releasing a statement after the Christchurch terrorist attack saying, "the real cause of bloodshed on New Zealand's streets today is the immigration programme which allowed Muslim fanatics to migrate to New Zealand in the first place."
Today, Ms Ardern described these comments as a "disgrace". Senator Anning has since appeared to have slapped a teenager who egged him at a speaking event.
Ms Ardern also told media today that gun policy changes would be discussed at the Cabinet meeting tomorrow, and information about national memorial services would be provided once confirmed.
"Options and the appropriate timing for national commemorative services are being considered actively now."
1 NEWS asked Ms Ardern about receiving the manifesto to her public email address before the attack.
"I was one of more than 30 recipients of a manifesto that was mailed out nine minutes before the attack took place. It did not include a location, it did not include specific details.
"Had it provided details that could have been acted on immediately it would have been, but there were unfortunately no such details in that email," the Prime Minister said.