American University announced its first confirmed case of COVID-19 on Monday. The medical director of the student health center said in a university email that a student tested positive after traveling in the U.S.

The patient, who lives on campus, returned to the university last week with symptoms. The director said the student contacted the university’s health center and was put in self-isolation in an on-campus housing arrangement. The student’s previous room and nearby areas were sanitized.

The D.C. Department of Health completed an investigation and determined that there were no close contacts on the campus, according to the director’s email.

This confirmed case comes after the university moved all classes online for the remainder of the semester. Students were advised to move off campus by March 23 as the school tries to control the spread of the coronavirus.