A video of five nightclub security guards viciously beating up two tourists on Phuket has been widely shared online.
The 48 seconds of footage shows the men, wearing black shirts, kicking and punching the two foreign men who do not fight back.
The video has attracted more than 275,000 views.
The incident happened at the popular nightlife area Soi Bangla, Phuket, on Wednesday night. The attackers only stopped when bystanders asked them to leave the tourists alone.
Thai police say they are looking for the two tourists, believed to be Australians, and they plan to summon the five nightclub security guards for questioning, reported the Canberra Times.