A London bus exploded sending a flaming tyre shooting across a busy street just moments after it's terrified passengers had escaped.
Luckily for those on board, a passing police officer spotted flames coming from a rear wheel and alerted the driver to the danger.
Witnesses described a "massive explosion" that shot flames "10 metres across the street".
Photojournalist Morshed Alam, 32, told the Evening Standard: "Its amazing no one was hurt.
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Celebs on public transport
Rihanna(01 of14)
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Britney Spears(02 of14)
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Holly Willoughby and Dermot O'Leary(03 of14)
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Sarah Harding(04 of14)
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Geri Halliwell(05 of14)
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Kim and Kourtney Kardashian(06 of14)
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Emma Bunton(07 of14)
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Kate Middleton(08 of14)
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Katie Holmes(09 of14)
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The Queen(10 of14)
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Jay Z(11 of14)
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Anne Hathaway(12 of14)
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Rihanna(13 of14)
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Alexa Chung and Zooey Deschanel(14 of14)
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"A crowd had formed, some of them must have been the passengers, and police were telling everyone to stay back.
"The fire was getting bigger and suddenly there was a huge explosion. It sounded like a giant gun shot. People started screaming and stepped back, panicking."
The cause of the fire is under investigation but is not thought to be suspicious.