Drivers of two air-conditioned buses were on Wednesday fined Bt5,000 each after Facebook users shared video of them driving against the traffic.
The Land Transport Department announced that the two drivers were filmed driving on the wrong side of Makkasan Road, heading to Ratchaprarop Road on Tuesday.
The clips were posted on the We Love Buses Facebook page.
The department said the drivers were Kittisak Meejaiyen, who drove bus 11-3, and Supoj Sunthornprawej, with bus 11-36.
The two drivers were also sent on an attitude adjustment session.