A bus exploded in a huge fireball after it hit an overbridge guard rail in central Stockholm, Sweden.
The incident took place yesterday, New Zealand time, and was captured on camera by motorist Max Eriksson.
Associated Press reports the driver suffered serious burns and was taken to hospital, but no other people were onboard.
The bus was powered by natural gas, which was stored in tanks on top of its roof.
As the the bus went towards a tunnel which was too low for it to pass through, it hit a steel guard rail which was set up at the same height as the tunnel.
Stockholm police reported that the explosion was simply an accident, and no terrorism was suspected.
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