Cork lads wore Hitler masks on a stag party in Prague.

Drunken Irish revellers who wore Hitler masks just yards from a Jewish quarter while on a stag party in Prague have been branded a “truly repulsive” and an “embarrassment to Ireland”.

Publican Frank Haughton also said men in the group from Cork verbally abused locals who raised objections; slapped his female staff on their buttocks; and launched into a tirade of sexually offensive comments.

He said he has welcomed tens of thousands of stag parties to his venues over the last 22 years — 90% from Britain and the rest from Ireland.“We get quiet ones, good ones, bad ones but rarely truly repulsive ones,” he said.“There are two in the ‘truly repulsive’ category that really stand out and it is with sadness and shame that I must state that both came from Ireland.”

The Cork group which visited his bar on April 24 was the worst he has ever encountered, he said.

“The group of about 25 or 30 guys from Cork who were here last weekend should be absolutely ashamed of their behaviour,” he said.

“They were a disgrace to themselves, their families, and a huge embarrassment to Ireland.

“The sad part is that these guys were of mixed ages, some of whom should have known better. But their language, their inability to have any respect for anything, was repulsive. These guys just didn’t give a damn.”

Mr Haughton owns Caffrey’s on Prague’s Old Town Square, and the James Joyce, recently ranked among one of the top 10 Irish bars in the world.

The stag party from Cork, men ranging in age from their mid 20s to mid 50s, arrived at Caffrey’s the weekend before last, a short distance from Prague’s Jewish Quarter, and began drinking in the bar’s outdoor seating area. Trouble flared when they donned Hitler masks, swastika armbands, and other Nazi paraphernalia.

“This was not just insensitive but their abuse of quiet elderly customers who pointed this out was shameful and their vulgar treatment of waitresses as sex objects — words cannot describe,” Mr Haughton said.

“Their excuse was ‘we can do what we want’.”

The bar manager eventually stopped serving them and asked them to leave.