The Hastings Fire Department responded to the Hastings Public Library Wednesday morning for a report of a fire in the building. Hastings Fire Chief Mark Jordan told WBCH news that investigation shows an electrical issue on a roof top air conditioning unit caused smoke to fill the library. Firefighters were able to turn off the electricity to that air conditioning unit and use big industrial fans to vent the smoke out of the library building. Chief Jordan said the library will be closed for the next couple of days.