"We are dispatching a team of experts to support both the investigation authorities and Thai Airways," the company told CNN.
Second incident in fortnight
The incident is the second in two weeks for Thai Airways.
At least 39 passengers were injured after an Airbus A380 with 500 passengers from Bangkok hit severe turbulence during its approach into Hong Kong International Airport on Aug. 30.
Thai Airways International has established a hotline for information about the accident in Bangkok. The number inside Thailand is 02 545 3181. From outside the country, the number is +66 2 545 3181.