At least three people were killed and five others critically injured after a shooting at Michigan State University (MSU) in East Lansing, Michigan on Monday.

The suspect, who has been identified as a student at the university, was found dead in the school’s parking garage with a self-inflicted gunshot wound, according to the Michigan State University Police.

In response to the tragedy, East Lansing City Hall will remain closed on Tuesday.

The shooting has left students and faculty at the university shaken. One parent, Nancy Kaffer, wrote an opinion piece in the Detroit Free Press, saying that she had to explain to her son what had happened on the campus.

“It’s a conversation no parent should have to have, but it’s one that more and more of us are having,” she wrote.

The university has set up a crisis counseling center for students and faculty affected by the shooting.

The incident is still under investigation and more details are expected to be released in the coming days.