Additionally, Indiana bat mortality due to wind turbines has been confirmed, even resulting in a December 2009 injunction against a West Virginia wind farm. As of 2013, only five Indiana bat mortalities have been documented; two females at Fowler Ridge in Indiana in September 2009 and 2010, one female at the North Allegheny Wind Energy Facility, Pennsylvania, in September 2011, one male at the Laurel Mountain Wind Power facility, West Virginia in July 2012, and one female at the Blue Creek Wind Farm, Ohio in October 2012. Fatality rates of up to 63.9 bats per turbine, per year have been estimated. Mortality is caused both by direct impact with rotors and by barotrauma.