New Zealand will ban all types of semi-automatic weapons and assault rifles following the Christchurch attacks, Prime Minister Jacinda Ardern has said.
The announcement comes less than a week after 50 people were killed at two mosques, allegedly by a lone gunman.
Ms Ardern said she expected new legislation to be in place by 11 April, saying: “Our history changed forever. Now, our laws will too.”
All of the dead have now been formally identified, police have confirmed.
One man has been charged with one murder. Australian Brenton Tarrant, a self-proclaimed white supremacist, is expected to face further charges.
However, police said on Thursday that the person he has formally been accused of murdering was wrongly declared to be dead.
They said they had apologised to the woman and her family, and that the charge sheet would be updated when the suspect next appeared in court on 5 April.
“Six days after this attack, we are announcing a ban on all military style semi-automatics (MSSA) and assault rifles in New Zealand,” Ms Ardern said in a news conference.
“Related parts used to convert these guns into MSSAs are also being banned, along with all high-capacity magazines.”
An amnesty and a buy-back scheme is being imposed so the owners of affected weapons could hand them in.
Ms Ardern said the buy-back could cost up to NZ$200m ($138m; £104m) but that “that is the price that we must pay to ensure the safety of our communities”.
The prime minister has called the Christchurch attacker a terrorist and said she will not utter his name.
The lone gunman, armed with semi-automatic rifles including an AR-15, is believed to have modified his weapons with high-capacity magazines.
Ms Ardern said measures had also been introduced to prevent gun stockpiling before the law changes.
As of Thursday, several weapons have been reclassified as military style semi-automatic firearms, making them harder to buy.
“For many people, you will now be in unlawful possession of your firearm,” Police Commissioner Mike Bush said.
He urged affected gun owners to call police or access their website for instructions, and to avoid turning up at police stations with their weapons.
