Singapore Airlines: British man dies in severe turbulence as flight from London Heathrow forced to land in Bangkok

A 73-year-old British man has died from a suspected heart attack after "sudden extreme turbulence" on a London-Singapore flight.

Dozens more have been injured after passengers described people being "launched into the ceiling" and overhead lockers.

Singapore Airlines flight SQ321 from Heathrow was forced to make an emergency landing in Thailand.

The plane left London on Monday night but diverted to Bangkok, landing at 3.45pm local time on Tuesday.

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Singapore Airlines said the pilot declared a medical emergency and landed in Bangkok after "sudden extreme turbulence over the Irrawaddy Basin at 37,000 feet about 10 hours after departure".

Passenger Dzafran Azmir, 28, described the chaos on board.

"Suddenly the aircraft starts tilting up and there was shaking so I started bracing for what was happening," he said.

"And very suddenly there was a very dramatic drop so everyone seated and not wearing seatbelts was launched immediately into the ceiling."

"Some people hit their heads on the baggage cabins overhead and dented it," he added.

"They hit the places where lights and masks are and broke straight through it."

Briton Andrew Davies told Sky News "anyone who had a seatbelt on isn't injured".

He said the seatbelt sign came on, but there was no time for crew to take their seats.

Mr Davies said "every single cabin crew person I saw was injured in some way or another, maybe with a gash on their head... One had a bad back, and was in obvious pain."

Kittipong Kittikachorn, head of Bangkok airport, told reporters a British man, 73, had died from probable cardiac arrest.

He said it's believed the turbulence hit while people were having breakfast and that an "air pocket" was to blame.

"Seventy-one people needed treatment and six of them had critical injuries," said Bangkok's Smitivej Srinakarin Hospital.

However, Singapore Airlines seemed to contradict those numbers and said only 30 people had been taken to hospital.

In a statement, the UK Foreign Office said it was "in contact with the local authorities".

Forty-seven Britons were among the 211 passengers and 18 crew onboard the plane, a Boeing 777-300ER.

Flight tracking data showed the plane cruising at 37,000ft (11,280m) before dropping 6,000ft (1,830m) in around three minutes.

However, a spokesperson for FlightRadar24 said this appeared to "just be a flight level change in preparation for landing".

Ambulances surrounded the aircraft on the tarmac after landing, with images showing some passengers taken away on stretchers.

"Singapore Airlines offers its deepest condolences to the family of the deceased," it said in a statement.

"We deeply apologise for the traumatic experience that our passengers and crew members suffered on this flight."

It said it was working with Thai authorities and "providing all necessary assistance during this difficult time", including sending a special team to Bangkok.

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Singapore is considered a standard-setter for the aviation industry and consistently tops airline awards.

Turbulence-related injuries are the most common type on passenger planes, according to a study by the US National Transportation Safety Board.

It found it was responsible for more than a third of accidents between 2009 and 2018, but no aircraft damage.

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