A building on the Iowa State University campus was damaged in an early morning fire.
The university says in a news release Friday that the fire at Sweeney Hall started in a mechanical area atop the building.
Ames firefighters responded and extinguished the blaze, but the building received extensive smoke and water damage. No one was injured.
The cause of the fire is still being determined.
Sweeney Hall is home to ISU's chemical and biological engineering department.
Crews plan to spend the weekend removing water and cleaning the building, but its west wing will be closed at least until Monday.
Some classes will be moved to other buildings.