Officers were dispatched to the Moorhead Fargo Islamic Community Center, which is located in Moorhead, about 5:20 a.m. Sunday, AP reported.
Police said the grafiti was found in several areas. Video surveillance from the building captured images of a suspect wearing a camouflage jacket and dark ski mask.
The investigation by Moorhead police and Fargo office of the Federal Bureau of Investigation is ongoing.
Moorhead Mayor Shelly Carlson said in a statement that hate “will not have a home” in her city.