A bat infestation was cleaned from a third floor ceiling of Oak Ridge High School this summer, school officials said.

Five live bats and more than 20 dead bats were removed, according to Allen Thacker, maintenance and operations supervisor for Oak Ridge Schools.

Maintenance workers had learned of the possible infestation on June 5, Thacker said. A pest control contractor said the infestation was contained in a third floor level of a 1994 addition.

The contractor said the bats were a common brown bat that migrates though the area, and the bats were most likely part of a larger colony that moved through the area, leaving a small group of sick or weakened bats behind.

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