Penn State police are investigating a report of ethnic intimidation inside a residence hall from January.
Police said someone slid an anti-Semitic note under the door of the Curtin Hall dorm room on where two male students live. Police said it happened Jan. 25 between 2 a.m. and 9 a.m.
Police said no one got a look at the note-dropper.
One of the roommates decided to report the incident to police Thursday.
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Earlier this week, State College police arrested two Penn State students who are accused of spray painting ethnic slurs and hate speech on cars and other property behind a predominantly Jewish fraternity in November.