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Police are warning Cal State Long Beach students and staff about a 27-year-old man who was arrested last week following two bizarre incidents at the campus.

Ion Surus Ghahreman, who is not a student at the university, was booked into the Long Beach Police Department jail and released Monday on $5,000 bail, authorities said.

He allegedly followed a male student onto campus Sept. 16 and sat next to him in class. Officers were summoned to the area of the Social Sciences/Public Affairs building and, “because of the strange nature of his behavior,” escorted Ghahreman off campus, according to a crime bulletin. He was advised not to return for at least seven days.

On Sept. 18, CSULB officers received a report of a man sleeping in a women’s restroom. Officers arrived and detained Ghahreman, who was subsequently arrested on suspicion of trespassing and entering an opposite-sex locker room, the Police Department said.