Police officers in a small Pennsylvania town are evidently afraid of a certain homicidal clown.

The Lititz police department on Tuesday posted photos of red balloons a prankster tied to a pair of sewer grates. A red balloon is the calling card of Pennywise, the sewer-dwelling, child-eating clown in Stephen King's horror novel "It." The hotly anticipated movie version opens in theaters Friday.

In a playful Facebook post , police write they admire the prankster's creativity but were "completely terrified" while removing the balloons and "respectfully request they do not do that again."