A passenger has died and dozens more have been injured after a flight from London to Singapore suffered a period of extreme turbulence.

The flight - a Singapore Airlines Boeing 777 - had left the UK just after 10pm on Monday night, but en route to its South-East Asian destination, it experienced a period of severe turbulence as it flew through tropical thunderstorms.

The plane was then forced to make an emergency landing at Bangkok's Suvarnabhumi International Airport, hours before it was due to land in Singapore.

The video above shows passengers being carried out in stretchers from Singapore Airlines flight SQ321 after it had to make the emergency landing in Bangkok.

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