A squirrel caused a campus-wide power outage early Tuesday evening on the main campus of North Carolina State University, Progress Energy said.

The campus lost power shortly before 6 p.m. and remained without it for more than an hour. It was an incident isolated to the campus, Raleigh police said.

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Police were in the area directing traffic while crews worked to fix the outage.

Progress Energy provides power to the substation, but power is managed by the university.