Chicago – Anti-Semitic graffiti was found on various garages and a synagogue in a highly populated Jewish area in Chicago early Sunday morning.

Messages were reported on the Congregation Atereth Yehoshoa, on the 2900 block of West Touhy Avenue and in the 2800 block of West Fitch and West Estes avenues in West Rogers Park, reports NBC 5 Chicago.

Graffiti included the initials “RN” and the words “Rex Nation,” referring to the sociological theory of a kind of anti-Semitism in which Jews are blamed for the Hitler movement, as formulated by Israeli psychoanalyst Zvi Rex. The graffiti also included drawings of Tyrannosaurus Rex and the Star of David.