Tak Governor Charoenrit Sa-nguansat and Tak police chief Pol Maj-General Parinya Wisitphakul surveyed the accident scene shortly after the tragic incident.
They said they would coordinate with government agencies concerned to make it easy for the relatives to retrieve the bodies.
The bodies need to first be identified after being burned beyond recognition.
Rescuers said the bodies were found piled up on one another near the exit doors.