WATERBURY, Conn. (WTNH) — Waterbury Public Schools will not open on Monday due to a staffing shortage, the school system said Sunday night.

According to the WPS Director of Communications Belen Michelis, all schools will be closed for students, but Monday will still remain an in-person workday for staff.

On the first day back from Christmas vacation, Waterbury’s superintendent said they had more than 340 employees call out sick. They still managed to have classes then, but now more sick calls have come in.

During the day on Monday, Superintendent Dr. Verna Ruffin said that the staff will thoroughly review revised guidance regarding COVID-19 quarantine and figure out if they have enough people working to hold classes for the rest of the week.

The news follows school closings last week in Hamden and Ansonia due to staffing shortages.