One person died and more than 50 others were injured in severe turbulence during a Singapore Airlines flight from London to Singapore, the carrier said on Tuesday. Data from the FlightRadar24 website suggested the aircraft suddenly descended by about 1,800 metres over the west coast of Myanmar. The rainy season has begun in the region and there have been severe storms in many places there. The Boeing 777-300ER departed from London on Monday and encountered severe turbulence en route. It had to be diverted to Bangkok where it landed on Tuesday at 3:45 pm (0845 GMT), the airline said in an updat…