The group "Muslims in New Zealand" said it was "overwhelmed" with messages of support in a Tweet.
About an hour after police initially responded, they reported that a "serious and evolving situation is occurring in Christchurch with an active shooter".
"He used to tell us life was good in New Zealand and its people are good and welcoming".
There are people who I would describe as having extremist views that have absolutely no place in New Zealand and in fact have no place in the world.
Members of the Bangladesh cricket team, now on tour in New Zealand, said on social media that they had almost been caught up in the tragedy.
She pronounced it "one of New Zealand's darkest days".
Police said they have arrested three men and a woman, and while they don't think there are any armed offenders still at large, they can't be sure the danger has passed or the incident is confined to Christchurch.
Semi-automatic AR-15s on sale at a Utah gun range Semi-automatic AR-15s on sale at a Utah gun range
"The right wing in this country needs to be held accountable for it... because the truth of the matter is that if this was somebody Muslim that engaged in this kind of tragedy, we would've had all kinds of finger pointing, and things written by some of the worst people on the planet that we were supposed to take into consideration", Jenkins told Radio Sputnik's Loud & Clear on Friday. Two other people were in custody but had not been charged and the third did not appear to be connected to the shootings. "Hopefully she will be so much better", he said.
They targeted Muslims specifically. "To move forward as a world, we need to recognize diversity as a source of strength, and not a threat".
Leaders around the world expressed sorrow and disgust at the attacks, with some deploring the demonization of Muslims.
Afghanistan's Taliban movement - Islamic militants who carry out near-daily attacks on Afghan security forces - also condemned the shooting rampage, calling it an "unforgivable crime".
India's high commissioner to New Zealand, Sanjiv Kohli, tweeted Saturday that nine Indians were missing and called the attack a "huge crime against humanity". "Israel sends its condolences to the bereaved families and its heartfelt wishes for a speedy recovery to the wounded", Netanyahu said on twitter.
The prime minister noted that it appeared the attacks appeared to have been well planned.
National Deputy Director of the Australian Institute of International Affairs Dr Bryce Wakefield said New Zealand's gun laws "were known for being particularly lax". "It unites us against extremism, hatred and terrorism, which knows no religion". The suspected attacker had bought five guns legally.
The New Zealand Police note how the Arms Act of 1983 doesn't require gun license holders to register their specific firearms with the exception of any military style semi-automatic firearms, pistols or other restricted weapons.
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