She called it one of New Zealand's darkest days and stressed there was no place for extremist violence in her country, or perpetrators of it.
"I'm also anxious about New Zealand because NZ is one of the most peaceful countries in the world, very good reputation so that image can be affected by this kind of activity".
Police are not looking for any named or identified suspects, he says, but adds that it would be "wrong to assume that there is no-one else".
Gray also said she recalled that Tarrant's father Rodney died from some kind of asbestos-related illness when Tarrant was finishing high school.
New Zealand Police Commissioner Mike Bush says the death toll has increased to 49 in shootings at two mosques.
The Palestinian Authority Ambassador to Australia and New Zealand Izzat Abdel Hadi earlier this morning announced that based on preliminary information, at least one Palestinian was killed in the attack, and six of those injured were also of Palestinian descent. Police said the manifesto contains conspiracy theories and echoes white nationalism seen at protests that resulted in violence in Charlottesville, Va., in 2017. They gave no details.
The 74-page document says the shooter was inspired by right-wing extremists in the United States - including Charleston church shooter Dylann Roof, who killed nine people in 2015. Pakistan's Prime Minister Imran Khan and other Islamic leaders pointed to the bloodshed and other such attacks as evidence of rising hostility toward Muslims. There are reports of a third active shooting unfolding outside Christchurch Hospital.
There has been a mass shooting at two mosques in the New Zealand city of Christchurch on Friday afternoon.
BBC quoted witnesses as saying that they ran for their lives and saw people bleeding on the ground outside the Al Noor mosque.
He added: 'There was shooting and shooting and shooting. people were running and all of a sudden you saw them fall'. "Three of which were outside the mosque itself".
With emotion in his voice, he said: "I was in the middle of the prayers when I heard multiple gunshots outside the mosque".
"I've lived next door to this mosque for about five years and the people are great, they're very friendly", he said. "I just don't understand it".
One person has been taken into custody and police are unsure whether others are involved.
People cowering in corners of a room were all shot as the gunman blocked the hallway, cutting off anyone's attempt to escape. Children's screams can be heard in the distance as he returns to his vehicle to get another rifle. The footage showed him firing indiscriminately at men, women and children from close range inside the Al-Noor mosque. Prime Minister of #NewZealand: "Many of those who will have been directly affected by the shooting may be migrants to New Zealand".