Ubisoft has confirmed that leaked images of a flier for Assassin's Creed: Brotherhood refer to an upcoming game in the popular stealth series.

The flier, which we first spotted on Kotaku, describes "a never-before-seen online multiplayer experience" that lets players "take part in an innovative multiplayer layer allowing you to embody an assassin of your choosing and define their killing style". The image also teases an autumn 2010 release date for the Xbox 360, PS3 and Windows PCs.

An Ubisoft representative confirmed that the image is authentic and that more information about the game would be revealed next week.

We first heard rumors of the Brotherhood title a couple of weeks ago via a Ubisoft website registration.