One British man, 73, died in the event, and other people were injured when Flight SQ321 began to shake during breakfast.
Kittipong Kittikachorn, the head of Bangkok Suvarnabhumi Airport, informed reporters that approximately 30 individuals were hurt, including at least one crew member.
Pictures taken from within the aircraft, which was headed for Singapore but ended up in Bangkok, Thailand, show the damage brought on by the turbulence.
Passenger Andrew Davies, who was sitting in premium economy, told News that he was watching a movie when the seatbelt warning lighted up and the plane began to descend.
