According to Yahoo! News
, security personnel at the Jim Bridger Power Plant spotted a device with wires connected to a battery around midnight and alerted the bomb squad.
The Bellingham Herald
reports that the bomb squad was able to determine the device was a mosquito trap following an X-ray scan.
The Casper Star Tribune
states that the mosquito trap was put in place by an organization known as Sweetwater County Weed and Pest in order to catch and identify certain types of mosquitoes that may be carrying the West Nile virus.