Nopparat Benjawatananun, director of the office, said monks at a temple in Sisaket are being investigated after several complaints were filed and officials viewed a video of three monks riding on a private jet, The Nation (Thailand) reported Monday.
Nopparat said the monks are being investigated to see if they violated any Buddhist teachings.
"If the answer is yes, we will ask the local monastic chief to punish those involved," he said.
The video, posted to YouTube, features the monks riding in a private jet while using expensive headphones, sunglasses and a Louis Vuitton bag, the Bangkok Post reported.
The monks are also alleged to be keeping several luxury cars near the temple.