A large fire has ripped through a railway arch beside Elephant and Castle station in south London, sending a ball of flame and plumes of black smoke billowing up high into the sky above the city's capital.
Police said the incident was not terror related.
Six people were injured and several buildings were forced to evacuate, the BBC reported.
London Fire Brigade said three commercial units were alight, as well as with six cars and a telephone box.
The London Fire Brigade said 10 fire engines and 70 firefighters were tackling the blaze which raced through three commercial units, causing trains to be diverted.
"Road closures are in place and people are advised to avoid the area and keep windows and doors closed," the fire brigade said.
Video footage released by the fire brigade showed black smoke rising high into the sky and then a ball of fire blasting out from the archway.
Speaking to the BBC, a nearby restaurant worker, 21-year-old Abdullah Safi, said the flames were "burning so high" and were reaching about 15 metres.
"I've never seen something that big – I was scared. And it exploded twice," he said.
It's believed the fire started in a nearby mechanic.
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