Eastern Kentucky University campus police are conducting an arson investigation after bulletin boards were set on fire on two floors of the university's tallest building early Thursday morning, an EKU spokesman said.
Commonwealth Hall, a 20-story residence hall built in 1967, was evacuated, and no injuries were reported. But there was minor damage to the walls, EKU spokesman Marc Whitt said. The dorm houses 422 students, Whitt said.
The sprinkler system activated after the fires broke out shortly before 4:15 a.m. Thursday. The fires occurred on the eighth and 19th floors, said Richmond Fire Department spokesman Corey Lewis.
The building was closed, and residents were temporarily relocated.
Residents were allowed to spend the rest of the night in the Powell Building or the campus student center, or stay with friends in one of the university's 13 other residence halls, Whitt said.
The dorm reopened Thursday morning, but its fire system went through ongoing tests throughout the day.
A male student was arrested on a charge of alcohol intoxication, Whitt said, but he did not know whether the student was connected to the arson investigation.
Lewis said the fires were "definitely deliberately set," but he didn't have details on how they were set.
Investigators found a fire-suppression sprinkler activated in a room next to one fire. Investigators think that sprinkler head was activated because of tampering and not because of the fire itself, Lewis said in a news release.
The fires are under investigation by the EKU police, the Richmond Fire Department and the state fire marshal's office.
Anyone with information about the fires is asked to call the EKU police at (859) 622-1111.