A group of students from the University of Wisconsin – Madison have tested positive for coronavirus after a spring break trip to Alabama’s beaches.

The university’s Health Services announced a “cluster” of COVID-19 related to a spring break trip to Gulf Shores. According to WKOW, the trip involved fraternity and sorority members who started their break in Nashville around March 13 and moved to Gulf Shores in Alabama around March 16.

UW Madison’s Health Service is asking anyone who went on the trip, whether they have symptoms or not, to shelter in place and observe a 14-day-self quarantine.

Interactive map shows COVID-19 potential spread from spring break beach during coronavirus pandemic