CINCINNATI, OH (Rooters) -- Cincinnati police and firefighters were dumbfounded when they were received a call reporting an arson at Paul Brown Stadium Sunday evening. Even more puzzling was what they found when they arrived on scene. "It was really weird," said one firefighter, who did not wish to be identified. "The stadium itself was fine; we couldn't even find a stray cigarette butt. The Bengals' uniforms, though, were scorched. Oddest thing I ever saw." Dazed Bengals players had a hard time putting together sketches of their assailants. The police described the assailants as a gang of about 50 men, mostly in their 20s and 30s, dressed in similar uniforms, except for their leader, whom they described as a man in his 50s in a blue pullover. Two of the assailants were especially vicious: one wearing number 39, according to Bengals linebackers, and one wearing number 97, according to Bengals quarterback Carson Palmer, who added that as the assailants were leaving the stadium, he could hear them muttering something about "roast Borges" and "dolphin souffle." Cincinnati police note that the MO seems suspiciously similar to a home assault reported in Buffalo, NY, last fall. They also note that the assailants are armed and dangerous.