Viral photos of dozens of Asian tourists, at first assumed as Chinese, frolicking naked in the surf of Hua Hin, have stirred up a storm in Thailand. Some Thai people gave the "Chinese tourists" a dig about their immoral behaviors on the social media.

However, subsequent investigation by Hua Hin police revealed that the 20 to 30 men involved in the mass skinny dipping session were NOT Chinese tourists but part of a Japanese tour group.

The case came to light after a Twitter user named @KomsakAddams posted photos showing the naked young men, arms locked together, ankle-deep in the sea Saturday on Hua Hin beach.

"I was having a meal with friends at a seaside restaurant when all of sudden dozens of a Chinese male group stripped naked. Do you think I can eat anything now?" Komsak wrote in a message, which had been retweeted more than 11,000 times.

While some expressed shock, others found humor.

"My dear friend, why are you doing this? This is disgusting! Why didn’t you get closer? I can’t see anything," user Tanacarnn wrote in reply.

When news reports identified the tourists as Japanese, Komsak took to Twitter to apologize for his assumption they were Chinese.

"I would like to apologize to China for accusing your tourists of stripping on Hua Hin Beach Saturday," he wrote.