University of Michigan police are investigating a possible hate crime after a Muslim student reported seeing a man urinating on a prayer rug inside a reflection room at the Ann Arbor campus. Police said one of three people in the reflection room at Shapiro Undergraduate Library was reported to have urinated on a prayer rug Sunday afternoon, MLive.com reported. The individuals were gone when police arrived and facility staff were expected to clean the room, according to the University of Michigan Division of Public Safety and Security’s crime log.