Sioux County authorities are looking for who tampered with a hog facility's thermostat, killing 475 pigs.
Someone entered the hog confinement facility five miles south of Rock Valley on Wednesday and tampered with the climate control system. That led to the death of the pigs, each weighing about 280 pounds.
Anyone with information is asked to contact the Sioux County Sheriff's Department at 712-737-2280.
