GREAT FALLS, Mont. -

A Montana ExpoPark accountant who was put on paid administrative leave around the time Cascade County began a "complex financial investigation" into the facility has resigned.

The investigation into the county owned sports and entertainment facility has been underway since March, but Friday was the first time County Attorney John Parker indicated the reason.

ExpoPark is home to the Montana State Fair, state high school sports tournaments, pro rodeo and other community events.

County human resources director Dewey Goering tells the Great Falls Tribune (http://gftrib.com/1nCDcRl) that accountant Claree Kelly resigned on April 16. Kelly and ExpoPark's general manager have been on paid leave since March 7. County officials have not said if that is related to the investigation.

Steve Potts, Kelly's attorney, said county commissioners have asked her not to comment.