The Muscatine Police Department is investigating a fire which damaged three motorcycles and two vehicles early Saturday morning. At approximately 3:57 a.m., police responded to the 3000 block of River Road where they discovered three motorcycles on fire. Police say it appeared as though the three motorcycles were purposefully set on fire. Two vehicles on either side of the motorcycles were also damaged from the fire. An investigation by the police department revealed the fire had been intentionally set through the use of an accelerant. Police say they don’t believe there is a threat to the public because initial findings indicate the victims may have been targeted. No arrests have been made and the case remains under investigation.