"It's a simple invitation to the whole of New Zealand to show our support, but also to recognize our grief as New Zealanders."
Fraser Anning, a senator in Australia who was egged, said "just because somebody has a different opinion to you there's no need to attack them. Just like we saw over in New Zealand."
"I compromised my values and beliefs to stand idly by as I watched commentators and pundits instill more and more fear into their viewers," the former Sky News employee wrote.
Facebook said the first user report of the video wasn't received until 12 minutes after the live broadcast ended.
Representative Alexandria Ocasio-Cortez accused President Donald Trump of sending white supremacists a message.
New Zealand Prime Minister Jacinda Ardern pledged to do everything she could to stifle the suspected gunman's desire for publicity.
Trump infamously called "for a total and complete shutdown of Muslims entering the United States" before taking office.
A survivor of the Linwood Mosque attack told a New Zealand news outlet that the shooter could not find the main door and instead shot at a window from outside.
The country is set to change its gun laws within days of an attack that claimed the lives of 50 people.
"There was a want to receive the dead immediately and start the grieving process...but they realize that this is not like any other incident," said one family member.
"Once you accept that these things can be harmful in the wrong hands, the trade-off is a small inconvenience," one gun owner said.
"We would like to remind people that it is an offense to distribute or possess an objectionable publication," New Zealand police warned in a statement.
Right-wing radio host Jesse Lee Peterson expressed concern that repressed white Americans may be incited to carry out a New Zealand–like attack in the U.S.
Australian Senator Fraser Anning is said to have hit the teenager after he egged him.
"But at the end of the day, these types of incidents are the result or the fault of the person behind the gun," Alice Stewart said.
"There is real data and information currently, right now on the rise of white supremacy right here in this United States of America," Representative Rashida Tlaib pointed out.
"You are my friends. I will keep watch while you pray," Andrew Graystone's sign read.
"When Putin interferes in the election, he's impotent," a New York Times opinion writer said. "The question is, why?"
"New Zealand is a sickening tragedy," Coulter tweeted. "When will this insane terrorism end."
American supporters of Donald Trump littered social media with posts condemning accusations tying the president's anti-Muslim, anti-immigrant rhetoric to Friday's shooting at two New Zealand mosques.
As people across the globe mourn, questions have been raised about whether the attack could have been prevented with better intelligence sharing and online surveillance.
"This president has given license to white supremacy in America that has spread across the world," said Tom Steyer, founder of the Need to Impeach campaign.