DOVER, Del. (AP) — Three men were shot and injured Saturday night at a cookout on the Delaware State University campus, officials said, and authorities are searching for the shooter.

The shooting happened at about 8 p.m. at a university-sanctioned fraternity and sorority event, DSU spokesman Carlos Holmes said.

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The victims were taken to Kent General Hospital in Dover with injuries that were not life-threatening, Holmes told The Associated Press.

“We can definitely tell you that the three victims were not DSU students,” Holmes said Sunday. “The event had a lot of guests … a lot of people that came from the surrounding communities and other schools.”

While confirming that the victims were all male, Holmes did not provide their ages or hometowns or any other details, including a possible motive for the shootings or whether any suspects have been identified.

DSU President Harry L. Williams said in a news release Saturday night that students were told to stay inside their dormitories, while non-students were asked to leave campus.

“The safety of our students continues to be paramount and our police will aggressively continue their investigation until an arrest or arrests are made in this shooting incident,” Williams said. DSU campus police is handling the investigation, although officers from the Dover Police Department, Delaware State Police and other agencies assisted in responding to the campus shootings.

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A second shooting occurred early Sunday at University Courtyard apartments, a university-run housing complex just off campus, but no one was injured. Holmes said it was unclear whether the two shooting incidents were related.

The apartment complex and campus were quiet late Sunday morning, although visitor access to the campus remained restricted to those with university ID cards. A group of students gathered at the shooting site for a cleanup, but several students declined to comment when asked about the shootings.

Holmes said the university will resume regular operations and classes on Monday.

In early November, a student was shot at a residence hall near the campus in what authorities determined was an isolated act. Two people were charged.

Delaware State University is a historically black university that has more than 4,100 full- and part-time students.

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(Copyright 2015 by The Associated Press. All Rights Reserved.)