Thailand may sue YouTube because the video sharing site published pictures considered insulting to the king.
YouTube has been banned in Thailand since a video clip in April showed King Bhumibol Adulyadej next to a picture of feet, which are considered offensive.
Since then, more clips mocking the king have appeared, including some that have been digitally altered to make him look like a monkey.
The Thai government could press charges of lese majeste against YouTube.
King Bhumibol Adulyadej is 79 years old and the world's longest-reigning monarch.