Police were today hunting tourists who were filmed romping with a Thai woman at a raunchy pool party.

Hundreds of revellers attended the event at a hotel next to the beach in notorious red light city Pattaya, Thailand, on Saturday night. But footage of one holidaymaker simulating sex with a bikini clad woman in front of cheering guests sparked outrage. A second clip shows a guest in a sailor's hat appearing to perform oral sex on the same woman while music blears in the background. The clip has the Thai words ''having sex'' written on it. Officers from the city's police force were handed the videos and launched an investigation yesterday accusing the party of ''damaging the reputation of the city'' and ''causing people to view the area negatively''. They visited the upmarket A-One Royal Cruise Hotel today and vowed to prosecute the two men in the footage and the filmer. They face fines of 1,000 baht (23.50gbp) each.

Police Colonel Apichai Krobpetch said: ''I have seen the video clip of this event and it is not appropriate. Although the woman is wearing a swimsuit it is still obscene and they are guilty of creating a pornographic show.The photographer and the people in the video will be referred to a prosecution for obscenity.'The investigation will now focus on three sections: the organisers, the hotel owner and the people in the video.''

Footage shows police chief's inspecting the pool while quizzing hotel executive chairman Somchai Ratanopa who blamed ''foreigners'' that hired the venue.