Read: 'An image can be stronger than an army': The ads that shook society
Previous controversy
This isn't the first time a Thai ad has drawn accusations of racism.
In 2013, a Dunkin Donuts ad campaign in Bangkok's train system showed a woman with her face painted black with the slogan 'Break every rule of deliciousness." The company later apologized.
That same year, ads for a skin-whitening cream by Unilever suggested the company would offer university scholarships to students with fairer skin.
The ads sparked a wide debate about skin color, and the company said it hadn't meant to "suggest racial discrimination," while apologizing for any "misunderstandings.