Speaking to reporters in Wellington, Mike Bush said by Saturday night all victims had been removed from the scenes of the massacres at the Al Noor and Linwood mosques.
At least two families had also requested that the bodies of their loved ones be repatriated to Pakistan, a process that could take up to 10 days, he said.
Christchurch city council offered a helpline for parents looking for kids attending a mass climate change rally near the shooting. The number of people injured in the attacks was also 50, of whom 36 remained in hospital.
Footage of the attack live streamed on Facebook showed the gunman entering the mosque and shooting randomly at people.
He added that the country was proud of Naeem Rashid, one of the victims, who the premier said would be recognised for his courage with a national award.
He succumbed to his wounds while under treatment following the attack and was identified as the individual who rushed at the right-wing terrorist attacking the mosque. Nabi's family left Kabul, Afghanistan, for New Zealand in the 1970s.
We know that from this devastation and deep mourning, the people of New Zealand will unite to show that such evil can never defeat compassion and tolerance.
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A Crisis Management Cell was established at the Ministry of Foreign Affairs in Islamabad for the timely dissemination of information and assistance, a press release issued by Dr Faisal on Saturday had stated.
Prior to the shooting, Tarrant had no previous criminal record in either Australia or New Zealand and "was not known to authorities in connection with far-right violence", according to Ardern.
Australia honoured the victims by lighting up some of the country's most famous landmarks, including the Sydney Opera House which projected the Silver Fern of New Zealand on its sails.
Tarrant stated that hat he was "from a regular family" and that he "decided to take a stand to ensure a future for my people", the alleged terrorist wrote of his background. "So all of these communities, and by extension their home countries, are mourning". "There are going to be friends among that list".
"Our prayers are with the families of the deceased, the injured and all others impacted by this tragedy. We want to lay them to rest". She said her office sent it to parliamentary security two minutes after getting it.
People have also been laying flowers outside of mosques in other parts of New Zealand in solidarity with the victims and their famlies.
Pacific Islands Forum Chair and president of Nauru Baron Waqa expressed his "deepest condolences" to the people and government of New Zealand on what he called a sad day for Christchurch and a sad day for the region.