Brenton Tarrant has been sentenced to life in prison without the possibility of parole at the High Court in Christchurch.
The Christchurch mosque murderer's sentencing began on Monday and the court heard grim details of how the attack was carried out.
Throughout the past three days, victims have had the opportunity to give emotion-charged impact statements.
They have since been outside court reacting to the sentence.
What you need to know:
- The Christchurch mosque terrorist has been sentenced to life in prison, without the possibility of parole
- Brenton Tarrant, 29, in March this year pleaded guilty to and was convicted of killing 51 people and injuring another 40 in an act of terror in 2019
- Families held white long-stemmed roses ahead of Tarrant's sentencing on Thursday
- Volunteers on Thursday gathered at Christchurch's Riverside Market, near the High Court, to stand with families and victims as they left the hearing.
This blog is no longer being updated. More on Newshub live at 6pm.
4:39pm - Prime Minister Jacinda Ardern says the trauma of March 15 is not easily healed.
"Today, I hope, is the last where we have any cause to hear or utter the name of the terrorist behind it," she told reporters.
4:35pm - The sentence is some satisfaction for survivors and the families of victims.
"I can't exactly say in words what I was feeling but it's a big relief," survivor Temel Atacocugu told Newshub.
4:21pm - There are growing calls for the terrorist to be sent to Australia to do his time.
New Zealand First leader Winston Peters says it's commonsense.
"The Islamic community and all of New Zealand has already suffered enough without having to pay astronomical prison costs to keep him safe in our prison system."
4:16pm - The Police Commissioner says it's important the community remembers how it came together following the Christchurch mosque attacks.
"We responded to this event with unity and our communities came closer together, which is ultimately what will ensure that all people can be safe and feel safe in this country," Cmmr Andrew Coster says.
3:56pm - During sentencing, Justice Cameron Mander told the terrorist he has not displayed any discernible distress at what he did.
"While you have expressed a willingness to engage in some form of restorative justice process in the future, it is not apparent from the reports I have read that you have shown much interest in your victims, let alone any remorse or empathy for the people you have killed and wounded, or for the wider harm you have caused."
3:47pm - A man who chased the gunman away from Christchurch's Linwood Mosque says he's looking forward to moving on with his life.
Abdul Aziz says resolution has been a long time coming.
"It will close the book for all of us and we can move on with our lives, because we waited a long long time for this day," he told Newshub.
3:44pm - The Police Commissioner is calling the sentencing of the Christchurch mosques gunman a milestone event.
Cmmr Andrew Coster says the sentence is pleasing.
"While this will be recorded as an historic sentence, it is the impact on victims and their stories of survival, strength, humility and forgiveness that we must remember.
"I would like to acknowledge the hundreds of police staff who worked for many months to ensure justice was ultimately served today.
"The investigation was one of the largest and most complex in New Zealand history, and I'm extremely proud of the team's exceptional policing through meticulous attention to detail and commitment to putting victims first."
3:34pm - Winston Peters is calling for the terrorist to be deported back to Australia.
"Now is the time for Australia's Minister of Home Affairs, Peter Dutton, to receive and carry out the terrorist's sentence in Australia," the Deputy Prime Minister says.
3:24pm - A man who was shot nine times during the terror attack says the sentence has left him speechless.
Temel Atacocugu told Newshub he's now able to breathe a sigh of relief.
3:21pm - Deputy Prime Minister Winston Peters say he applauds the terrorist receiving the maximum sentence.
"The judgement is the only one that matched the depravity of the terrorist’s crimes against the Islamic community, and its devastating effect on all people living in this country."
3:18pm - According to Canberra-based 7 News journalist Taylor Aiken, Prime Minister Jacinda Ardern has not made any request to Australia PM Scott Morrison to have the terrorist deported back to his home country.
3:11pm - International media has started to react to the terrorist's sentencing, including the BBC and The Sun in the UK and the ABC in Australia.
2:53pm - In sentencing the terrorist on Thursday, Justice Cameron Mander said, "Your crimes ... are so wicked that even if you are detained until you die, it will not exhaust the requirements of punishment and denunciation".
2:44pm - Al Noor Mosque Imam Gamal Fouda says he is proud to be a Muslim in New Zealand.
"We stood together against hate," he told reporters outside the Christchurch High Court.
2:37pm - Prime Minister Jacinda Ardern says nothing will take away the pain of the horrific events of March 15, 2019.
"I want to acknowledge the strength of our Muslim community who shared their words in court over the past few days.
"I hope you felt the arms of New Zealand around you through this whole process, and I hope you continue to feel that through all the days that follow.
"The trauma of March 15 is not easily healed but today I hope is the last where we have any cause to hear or utter the name of the terrorist behind it. His deserves to be a lifetime of complete and utter silence."
2:28pm - An emotional Jacinda Ardern has called for the name of the now convicted Christchurch mosques gunman to never be repeated again.
The Prime Minister says she's been struck by the "strength" victims had shown in their impact statements.
2:21pm - Members of the public gathered outside the High Court singing waiata as victims and their families left the building.
Al Noor Mosque Imam Gamal Fouda says they are proud to be Muslims in New Zealand.
"We'll continue to serve this country," he said.
2:17pm - Police Commissioner Andrew Coster has released a statement paying tribute to the victims of March 15.
"While this is an unprecedented sentence, it will not ease the grief of the victims, their families and communities, nor will it erase the abhorrence we felt as a nation," he said. "While this will be recorded as an historic sentence, it is the impact on victims and their stories of survival, strength, humility and forgiveness that we must remember.
"New Zealand and the world, has felt the pain of the Muslim community and the horror of such a hateful and senseless act committed in our own backyard, against our own people."
2:10pm - There have been cheers from outside the Christchurch High Court as victims and their families emerged.
2:05pm - Victims and their families are beginning to emerge from the High Court in Christchurch.