At least 49 people have been killed and 48 injured in shootings at Masjid Al Noor and the Linwood Masjid mosques in Christchurch.
But a few hours later, footage from the stream remained on Facebook, Twitter and Alphabet Inc's YouTube, as well as Facebook-owned Instagram and WhatsApp.
"New Zealand Police alerted us to a video on Facebook shortly after the livestream commenced and we removed both the shooter's Facebook account and the video", said Mia Garlick, a Facebook representative in New Zealand.
Facebook, YouTube and other social-media platforms are struggling to scrub offensive content from sites that generate billions of dollars in revenue from advertisers.
Facebook and YouTube did not immediately respond to HuffPost's request for comment on the matter.
Copies of the footage reviewed by Reuters showed that some users had recorded the video playing on their own phones or computers to create a new version with a digital fingerprint different from the original.
"There is no fool-proof way to catch acts of violence on video or images with the technology that we have today", she said.
PewDiePie, whose real name is Felix Kjellberg, said on Twitter he felt "absolutely sickened" that the alleged gunman referred to him during the livestream. "Platforms can't prevent that, but much more can be done by platforms to prevent such content from gaining a foothold and spreading".
Motherboard has found out that once a live video has been flagged on Facebook, moderators will have the ability to " ignore it, delete it, check back in on it again in five minutes".
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.
New Zealand Massacre suspect was gun club member
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 .
In the United States, the assault in Chicago of an 18-year-old man with special needs, accompanied by anti-white racial taunts, in 2017, and the fatal shooting of a man in Cleveland, Ohio, that same year, were also live-streamed. After more than a day, and 370,000 views, Facebook removed the video. "Can we ever make live videos safe?"
"The responsibility for content of the stream lies completely and exclusively on the person who initiated the stream".
The rampage's broadcast "highlights the urgent need for media platforms such as Facebook and Twitter to use more artificial intelligence as well as security teams to spot these events before it's too late", Ives said.
"Our hearts are broken over today's awful tragedy in New Zealand", read the statement.
Ionescu said that's because video and images are harder to block than words.
Satellite navigational audio could also be heard in the video as he drove to the mosque.
Members of a group called "watchpeopledie" on internet discussion board Reddit, for example, discussed how to share the footage even as the website took steps to limit its spread.
First and foremost, the prime minister of the country, Jacinda Ardern, made an emotional statement after the shootings, calling Friday "one of New Zealand's darkest days".
"There's no excuse for the content from that livestream to be still circulating on social media now", said Lucinda Creighton, a former government minister in Ireland and an advisor to the Counter Extremism Project, which campaigns to remove violent internet content.
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.
Court documents allege Sidoo paid William Singer to arrange for Florida man Mark Riddell to fly to Vancouver and take the tests. A total of about 50 people, including celebrities Lori Loughlin and Felicity Huffman , have been charged in the scandal.
His arrival in New Orleans was a part of the headline-making trade with the Seattle Seahawks for tight end Jimmy Graham in 2015. Not only are the Saints losing a three-time Pro Bowler, Unger was one of the leaders within the New Orleans organization.
La date de son arrivée dans le Béarn dépendra de sa participation ou non à la Coupe du monde au Japon (20 septembre - 2 novembre). Luke Whitelock constitue la 5e recrue de la Section après Denis Marchois, Alexandre Dumoulin, Ben Smith et Sigfried Fisi'ihoi.
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.
At a roadblock outside the Al Noor mosque on Sunday, about 40 people were standing in silence near scores of bunches of flowers. The Fijian rugby team also expressed their solidarity with the people of New Zealand after the attacks.
United éliminé à Wolverhampton — Cup
Jimenez (70e) et Jota (76e) pour Wolverhampton; Rashford (90e+5) pour Manchester United . Millwall et Brighton se disputeront l'ultime ticket pour le dernier carré dimanche.
US hoops draws Turkey, Czech Republic, Japan in World Cup
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 .
Australia target World Cup win after stunning India
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.
Attacks against Congo's Ebola treatment centers threaten gains
The bodies of victims are highly contagious, and the aid group said that figure shows community mistrust is still widespread. He said the WHO would not leave when the outbreak ended, but would help the government to build stronger health services.