Watch bystanders tackle London terror attacker | CNN

Watch bystanders tackle London terror attacker

london narwhal attack

Watch bystanders tackle London terror attacker

Dramatic video shows a group of bystanders' heroic actions in subduing the London Bridge terror attacker Usman Khan, one by spraying him with a fire extinguisher and another by wielding an apparent narwhal tusk.

1:29 • Source: CNN

Look back at Britain's biggest political moments of 2019 12 videos

london narwhal attack

Watch bystanders tackle London terror attacker

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Britain's Prime Minister Boris Johnson gives a speech during a visit with the police in West Yorkshire, northern England, on September 5, 2019. - UK Prime Minister Boris Johnson called Thursday for an early election after a flurry of parliamentary votes tore up his hardline Brexit strategy and left him without a majority. Johnson was on a campaign footing on September 5 as he launched a national effort to recruit 20,000 police officers in Yorkshire in northern England. (Photo by Danny Lawson / POOL / AFP) (Photo credit should read DANNY LAWSON/AFP/Getty Images)

Boris Johnson says he'd rather be dead than delay Brexit

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Britain's new Prime Minister Boris Johnson waves from the steps outside 10 Downing Street, London, Wednesday, July 24, 2019. Boris Johnson has replaced Theresa May as Prime Minister, following her resignation last month after Parliament repeatedly rejected the Brexit withdrawal agreement she struck with the European Union. (AP Photo/Frank Augstein)

Boris Johnson's personal life makes waves

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Britain's Queen Elizabeth II (L) views a display of US items of the Royal collection with US President Donald Trump and US First Lady Melania Trump at Buckingham palace at Buckingham Palace in central London on June 3, 2019, on the first day of their three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by MANDEL NGAN / AFP) (Photo credit should read MANDEL NGAN/AFP/Getty Images)

Queen Elizabeth II shows Trump royal gift collection

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WINDSOR, ENGLAND - JULY 13: Queen Elizabeth II and President of the United States, Donald Trump walk from the Quadrangle after inspecting an honour guard at Windsor Castle on July 13, 2018 in Windsor, England. Her Majesty welcomed the President and Mrs Trump at the dais in the Quadrangle of the Castle. A Guard of Honour, formed of the Coldstream Guards, gave a Royal Salute and the US National Anthem was played. The Queen and the President inspected the Guard of Honour before watching the military march past. The President and First Lady then joined Her Majesty for tea at the Castle. (Photo by Chris Jackson/Getty Images)

President Trump gets another crack at royal protocol

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Why divisions in the UK run much deeper than Brexit

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UK Supreme Court rules Parliament suspension unlawful

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In this image made from video, British lawmakers stage a protest in the House of Commons before prorogation of Parliament, in London, Tuesday Sept. 10, 2019. The British government has formally suspended Parliament, sending lawmakers home for five weeks amid a Brexit crisis. (Parliament TV via PA via AP)

Watch the chaos unfold as the UK's parliament is suspended

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Britain's Queen Elizabeth II (R) raises a glasses with US President Donald Trump during a State Banquet in the ballroom at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Dominic Lipinski / POOL / AFP) (Photo credit should read DOMINIC LIPINSKI/AFP/Getty Images)

President Trump toasts Queen Elizabeth during UK visit

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New-look Boris Johnson emerges as Tory frontrunner

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Theresa May tears up as she announces resignation

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Here's what you need to know about Brexit

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