RIVER GROVE, Ill. (CBS) — A fire broke out Sunday afternoon at Guerin College Preparatory High School in River Grove, which closed nearly a year ago and is set to be demolished.

River Grove Fire Chief Sean Flynn said at 4:09 p.m., firefighters responded for smoke coming from the roof of the empty school building at 8001 W. Belmont Ave. in the western suburb.

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They found a small fire in the Holy Cross Gym at the school and put it out. The cause was under investigation late Sunday.

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Guerin Prep announced on Feb. 1 that the developers to whom the school property had been sold would be tearing the building down. The school closed at the end of the 2019-2020 school year.

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Flynn said the school is vacant and no demolition work is happening at the moment.

CBS 2 Chicago Staff