This article has been updated to reflect the most recent reporting.
All classes in Putnam Hall and Seigfred Hall are canceled Thursday.
Those buildings are without power and are expected to be closed until at least 4 p.m. as crews work to restore power, according to a campus-wide email. No one is allowed in the buildings.
Facilities identified a failed switch as the cause of the electrical outage, and power is estimated to be restored to the buildings by 5 p.m.
Most of Ohio University lost power Thursday at about 12:30 a.m. After about 10 seconds, the university’s backup power system was able to keep the emergency lighting on.
Power to other buildings was restored at about 4:30 a.m.