Minneapolis - The organiser of a World War 2 themed party that included Nazi flags and men in SS uniforms is apologising after a photo of the event in the United States provoked outrage on the Internet.

Scott Steben had said that the January dinner was a Christmas party and an exercise for period actors.

But in an apology reported by the Star Tribune, Steben says his group understands that some items displayed at the dinner “have made people feel uncomfortable”. He said “that was not our intent”.

The dinner featured men in SS and German Army uniforms, as well as Nazi banners hung on the walls of a German restaurant booked for the event.

A photo from the party was first posted online by the alternative weekly City Pages. - Sapa-AP