Firefighters arrived shortly after 9:30 a.m., and quickly determined a transformer had blown, according to a statement.
The transformer is located on the outside of the hospital and smoke drifted inside and down a hallway.
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The statement also said a brief power outage occurred when the transformer malfunctioned, but back-up generators quickly activated and city crews arrived shortly after to fix the problem.
No one was injured from the smoke or during the power outage.