DeLaSalle High School students were told to stay home Wednesday after a “potential security threat” was made against the school by a student.

School officials have not specified the nature of threat, but in a letter to parents school President Barry Lieske told students to stay home and that Wednesday would be an online learning day.

“This decision was made out of an abundance of caution … in response to a potential security threat,” Lieske said in a statement. Administrators learned of the threat after school hours Tuesday and contacted Minneapolis police to help investigate. In statement released Tuesday night, school officials said they were getting cooperation from the student who made the threat, the student’s parents and law enforcement.

Minneapolis police officers were stationed at the school Wednesday morning to monitor the situation.

DeLaSalle is a private Catholic high school on Nicollet Island in downtown Minneapolis.