Suvarnabhumi has called on airport users not to place anything by way of respect to ogres, which are among the well-known sculptures at Thailand's international gateway.
The airport on Monday made the call after about two dozens of red soda drinks were found at the feet of Suriyaphob, one of the ogres in the departure hall.
The pictures were posted on @Phil_Prajya Twitter account on Monday.
The airport said it had checked footage of security cameras after the post and found a man placing the bottles before Suriyaphob at 5.08pm on Sunday.
Cleaners have been ordered to collect and throw away anything found near the ogres, the airport said. The giant sculptures are created to show Thai traditional arts and worshipping is not allowed, it added.
The red-soda bottles have been widely used to pay respects to spirits houses and other respected sculptures in the country.
Suvarnabhumi airport shows the red soda drinks have been wiped out from the ogre by cleaners. (Suvarnabhumi airport photo)