Someone posing as Safaree Samuels is tweeting out extremely NSFW pics of his ex, Nicki Minaj ... but the rapper is adamant ... he's got nothing to do with it.
A rep for Safaree tells TMZ ... he'd never do anything like this, and he's doing everything he can to shut down the tweeter behind it. The photos -- some in highly sexual situations -- started going out on Wednesday ... from a Twitter handle extremely similar to Safaree's.
Just so fans know ... the real @IAMSAFAREE has around 143k followers -- while the faker posting the pics has just over 3400.
As for whether the pics -- especially the graphic ones -- are legit? Safaree's rep says he doesn't know. We're told Safaree's moved on after the difficult break up with Nicki, and now just says ... it is what it is.