Peneha said he saw the attacker flee the mosque and then drop his semi-automatic weapon in his driveway.
She pronounced it "one of New Zealand's darkest days".
"Forty-eight patients, ranging from young children to adults with gunshot wounds are being treated at Christchurch Hospital". Injuries range from critical to minor.
New Zealand police detained three men after the attacks, but have not provided their identities.
There was a second shooting at the Linwood Masjid Mosque that killed at least 10 people.
"It shows that extremism is nurtured and that it lives in many places", she said.
The New Zealand national flag is flown at half-mast on a Parliament building in Wellington on March 15, 2019, after a shooting incident in Christchurch. A police statement gave no further detail of how it might be linked to the attacks. Authorities added that none of them were on any terrorism watch, including in Australia.
In the manifesto, Tarrant describes himself as "just an ordinary white man, 28 years old".
Prime Minister Jacinda Ardern described the mosque attacks in New Zealand as "an extraordinary and unprecedented act of violence".
- One man has been charged with murder. As the shooting unfolds, a person can be heard saying, "There wasn't even time to aim there was so many targets".
United States president Donald Trump said that his "warmest sympathy and best wishes goes out to the people of New Zealand after the frightful massacre in the mosques,".
Authorities also say they found two improvised explosive devices (IEDs) attached to a vehicle.
The MCB said two mosques in Newcastle and Manchester had been targeted by vandals who spray-painted Nazi swastika symbols in the past two months.
"My warmest sympathy and best wishes goes out to the people of New Zealand after the awful massacre in the Mosques", he tweeted.
This I want to assure people is to ensure that all our agencies are responding in the most appropriate way.
Three Bangladeshis were among the dead and one was missing, the consulate said. "It's unbelievable nutty. I don't understand how anyone could do this to these people, to anyone. Everybody just ran to the back doors to save themselves", one eye witness said.
In Muslim-majority Malaysia, Anwar Ibrahim, the leader of the biggest party in its ruling coalition, said: "I am deeply saddened by this uncivilized act, which goes against humanistic values and took the lives of civilians". He then walks outside, where he shoots at people on the sidewalk.
In the video, the shooter parks his auto next to the mosque and gets out of the vehicle with a rifle.
The two mosques are about five kilometers apart.
After going back outside and shooting a woman there, he gets back in his auto, where the song "Fire" by the English rock band The Crazy World of Arthur Brown can be heard blasting. The video then cuts out.
She went on to reveal that so far she has had no response from her family members based in New Zealand.
On Saturday, outside one of the two mosques, 32-year-old Ash Mohammed pushed through police barricades in hopes of finding out what happened to his father and two brothers, whose cellphones rang unanswered.
He said he was in New Zealand temporarily while he "planned and trained" the attack.
Australian rapper Iggy Azalea took to Twitter, writing: "Thinking of New Zealand".
"Harrowing news from New Zealand overnight" said EU Council president Donald Tusk.
New Zealand is generally considered to be a welcoming country for migrants and refugees.
Prime Minister Jacinda Ardern speaks at parliament yo media about the Christchurch mosque shootings.
Christchurch airport is operating as normal.
"Everyone is shocked, and the people of Christchurch are". In all, a total of 49 people were killed.
The Bangladesh cricket team narrowly avoided being caught up in the shooting while on a bus approaching one of the mosques while in the city for a match, which has since been canceled.
"He had a big gun. he came and started shooting everyone in the mosque, everywhere", said the man, Ahmad Al-Mahmoud.