At least six revellers were injured in a chaotic bar fight in the bustling Thai tourist city of Pattaya.

Two groups of young men sparked panic as they began brawling at the 'YES Pattaya' pub at around 3:20 AM on April 2.

Police officers and rescue volunteers arrived to respond to the mass punch-up but the thugs continued beating each other despite the presence of law enforcement.

Medics hauled away the wounded while the alleged gangsters carried on throwing alcohol bottles and hurling insults at each other, spilling booze and blood all over the bar floor.

At least six wounded were taken to the Banglamung and Pattaya hospitals after cops suppressed the melee, not including those who had escaped from the scene. They were accompanied by officers to prevent further altercations.

Pattaya Police said they are still reviewing CCTV footage to determine the aggressors, adding they will interrogate those involved.

Police Captain Manot Tipwet said: 'The disturbance was caused because the people were drunk. We are investigating and will prosecute the people involved.

'The initial reports from witnesses were that it started when hard words were spoken between two groups of people and then it escalated.'

Military top brass from Bangkok have been trying for several years to clean up Pattaya, dubbed the 'sex capital' of the world and a modern-day Sodom and Gomorrah, as they battle to kick out badly behaving Brits and Aussies, and turn the region into a family-friendly resort to tap into lucrative family markets in China, India and Russia.

However, they face an uphill struggle against its entrenched 24-hour sex industry and endemic corruption that allows it to continue unabated. The bars - many of which are run by British ex-pats and function as shop windows for cheap prostitutes - along with massage parlours and street workers are also a lucrative part of the tourism industry, which before the pandemic accounted for 21 percent of Thailand's annual GDP, generating 1.8 trillion baht (52.3 billion USD) in revenue.