The families of those badly wounded in the Christchurch mosque shootings continue to wait for news of their loved ones as New Zealand's prime minister says their attacker's name should not be spoken.
Authorities say 30 people are still in hospital, with nine in intensive care, following the shooting on Friday that killed 50 and wounded another 50.
Only 12 victims have been identified so far, with six returned to their families.
Police are working with the families of the other six victims to have their bodies returned.
"Police are acutely aware of frustrations by families associated with the length of time required for the identification process following Friday's terror attack," NZ Police said in a statement.
"We are doing all we can to undertake this work as quickly as possible and return the victims to their loved ones.
"While identification may seem straightforward the reality is much more complex, particularly in a situation like this.
"Our absolute priority is to get this right and ensure that no mistakes are made."
With reports the Australian charged over the attack, 28-year-old Brenton Tarrant, intends to represent himself in court, fears have grown the white supremacist could use the NZ legal process to espouse extremist views.
In an impassioned speech to parliament, Prime Minister Jacinda Ardern said she would not be using the gunman's name, in a bid to deny him notoriety.
"He is a terrorist. He is a criminal. He is an extremist. But he will, when I speak, be nameless," she said.
"And to others I implore you: speak the names of those who were lost, rather than name of the man who took them."
She thanked some of the heroes that had emerged.
"Naeem Rashid died after rushing at the terrorist and trying to wrestle the gun from him," Ardern said.
"Abdul Aziz, originally from Afghanistan, confronted the armed terrorist after grabbing the nearest thing he could find, a simple (credit card) machine.
As her government prepares to announce new firearms laws in coming days, ministers confirmed they are looking to Australia, which launched a successful gun buyback following the Port Arthur massacre 33 years ago.
With a likely ban on military-style, semi-automatic rifles like those Tarrant allegedly used, some New Zealanders have already taken on Ardern's suggestion to voluntarily hand in their guns.
"We don't need these in our country," farmer John Hart said after surrendering the semi-automatic he's had for about a decade.
Meanwhile, the minister in charge of New Zealand's intelligence agencies, Andrew Little, rejected criticism security authorities had not done enough to mitigate the risk of acts of terror driven by far-right extremism.
While Tarrant did not appear on security watchlists on either side of the Tasman, Little said agencies had in recent months turned increasing attention to the alt-right and white supremacist movements.
"The warrants that deal with the threats to extremism are not confined to one form of extremism," he told Radio NZ.
The government has, however, announced a probe into why Tarrant was missed - despite his gun collection and online presence - and if he could have been stopped.
While about 250 police officers are on the ground - including from Australian Federal Police - piecing together the attack, investigators have been met by resistance from those running controversial websites
Facebook took down 1.5 million copies of the livestream footage of the shooting after authorities were last week left scrambling to stop its spread.
Australian Prime Minister Scott Morrison has written to global leaders asking them to crack down on social media companies that broadcast terrorist attacks.
Armed officers maintained a heavy presence across Christchurch on Tuesday with mosques still under guard as residents returned to work, school and prayer.
The families and friends of the dead have flooded into the city from around the globe and are continuing with funeral preparations as they wait for coroners to release the bodies of their loved ones.
About 60 Muslim volunteers from Australia have flown to New Zealand to help prepare the bodies for burial in coming days, in accordance with Islamic funeral rites.
Australian Associated Press