It's thought that 24 of the injured were Russian and three were from Thailand. Fifteen people were taken to a Bangkok hospital for treatment on a range of injuries that varied in severity.
The turbulence hit around 40 minutes before landing in Bangkok, and crew were unable to warn passengers of the danger because it occurred in a clear sky, according to Reuters.
One passenger, Evgenia Zibrova, shared a video of the scene from inside the plane. According to the Metro, she said: "Lots of people from the tail cabin have broken their noses, several people have probably broken their spines.
"Babies are covered in bruises, people lost consciousness. Thanks that we are still alive."
A spokesman from the Russian embassy in Thailand said: "All the injured were sent to a local hospital with injuries of a different kind of severity, mainly fractures and bruises.
"The reasons behind the injures was that some of the passengers had not had their seatbelts fastened."