She said her office was one of about 30 recipients and had forwarded the email to Parliamentary security within a couple of minutes of receiving it.
Jacinda added that the terrorist was brought down within 36 minutes of the attack.
In emotional scenes, Ardern earlier met mourning members of the Muslim community in Wellington.
Syrian refugee Khaled Mustafa, who had arrived in New Zealand with his family just months ago, was amongst those killed on Friday.
The death toll of the Christchurch terror attacks has risen to 50, and two injured victims remained in critical condition, Police Commissioner Mike Bush said Sunday morning.
Mohammad Imran Khan, a 47-year-old man who owned two restaurants in Christchurch died in the Lynwood mosque.
New Zealand's Minister for Pacific Peoples Aupito William Sio said he spoke to one of the Trustees of the Festival last night about the decision, and why it was made.
The first victim identified was Daoud Nabi, a 71-year-old grandfather who died trying to save someone else from a bullet, according to his son.
Many victims still missing or injured, families and relatives continue to wait around the hospitals in Christchurch to hear about the fate of their loved ones.
"We struggling with it as much as everyone else".
"We do see gunshot wounds".
Following the horrendous massacre, a 28-year-old Australian man, Brenton Tarrant, has been charged with murder.
Grieving families given earth from Ethiopian crash site
The announcement comes in the wake of last week's Ethiopian Airlines crash that killed all 157 passengers and crew onboard. Family members are being give a 1 kilogram sack of scorched earth taken from the crash sites, said two family members.
The suspect was remanded in custody without plea to the High Court in Christchurch on April 5.
Footage of the attack on one of the mosques was broadcast live on Facebook, and a "manifesto" denouncing immigrants as "invaders" was also posted online.
However, because none of the bodies have been returned to the victims' families because of the investigation, many having been unable to bury their dead within the 24 hours customary in Islam.
"We have to be absolutely clear on cause of death and confirm their identity before that can happen", he said. But Bush said police are aware of the Muslim faith's requirement for a prompt burial.
Morrison said that social media companies had "co-operated" since the attack.
Meanwhile, outside the court, major roads in the city center are cordoned off with heavy armed police officers on duty.
"They put themselves in harm's way to stop any further attack - and I do believe they did prevent further attacks".
Church services for victims of the attack were held around the country, including at Christchurch's "Cardboard Cathedral", a temporary structure built after much of the central city was destroyed in a 2011 quake.
Victims came from across the Muslim world, including Indonesia, Malaysia, Turkey, Afghanistan and Bangladesh.
Anyone over 16 can apply for a New Zealand firearms licence, valid for 10 years after completing a safety course and a police background check. He used five guns in the attacks and had a gun license allowing him to legally purchase all of his weapons. Police are still working to identify what type of weapon was used, but Bush said "it's quite obvious" he modified his firearm.
None of those arrested had previous criminal records.
There will be 12 teams in the Olympic field - host Japan is one, and seven other nations will directly qualify from the World Cup. The official draw for the World Cup had the Philippines clustered with Italy, Serbia, and Angola in Group D .
Khawaja, who was named man of the series, said it was a sweet vengeance after the home ODIs annihilation to India early this year. Talking about his own terrific form in this series, Khawaja said it was very satisfying to play a part in the team's victory.
Counsell said it's clear Mayfield is a leader, as he really had the attention of the Brewers during his chat with the players. Glazer received criticism from some on the prediction as the Giants were posturing publicly that they wouldn't trade Beckham.
Fans of April the Giraffe can rejoice because the well-known animal welcomed a baby boy on Saturday, park officials said. In addition to Tajiri and her youngest offspring, April is also mom to three others, which were born behind the lens.
NZ Prime Minister Jacinda Ardern says despite the attacks being carried out in Christchurch, he had been based in Dunedin. Handcuffed, shoeless Tarrant appeared in a Christchurch District Court on Saturday and was charged with murder .
Sacramento's playoff chances are fading, but Fox's fantasy value will be fine as long as they can stay within striking distance. The Celtics then rallied again, this time going ahead on a Brown 3-pointer with 55.4 seconds remaining in the third quarter.
US Navy veteran sentenced to 10 years in Iran: Lawyer
The New York Times , which first reported the sentencing, said White had been given two court hearings, on March 6 and March 9. A fourth, former Federal Bureau of Investigation agent Robert Levinson, has been missing in Iran since 2007.
Ruthless Wales seal Grand Slam with emphatic victory
Wales shrugged off the rain, wind and Ireland to win the Six Nations and complete the Grand Slam this morning (local time). Wales were as low as eighth in the rankings less than two years ago after finishing fifth in the Six Nations.
Mt Gox head convicted of manipulating data, cleared of theft
Karpelès, wearing a dark suit, bowed to the judge as he entered the courtroom." He was motionless after the verdict was read out. The odds were stacked against Karpeles as the vast majority of cases that come to trial in Japan end in a conviction.
Près de 3000 lycéens marchent pour le climat à Tours
"123 pays!", a tweeté la jeune Suédoise Greta Thunberg , icône du mouvement avec sa grève hebdomadaire de l'école. Les étudiants du monde entier s'étaient donné rendez-vous ce vendredi pour faire la grève en faveur du climat.
Man arrested for tackling brown pelican in Florida
The Monroe County Sheriff's Office was notified of the arrest and has initiated extradition proceedings. After a bond hearing in front of a court commissioner, he is now awaiting extradition to Florida.
Kyle Massey Sued Over Alleged Sexual Misconduct With A Minor
Massey is being sued by a 13-year-old girl who says the former child TV star sent her sexually explicit photos and a video. Days later, Massey allegedly began sending "numerous sexually explicit text messages, images, and videos" to the girl.