Last week a pork producer near Hull, Iowa, discovered that someone had tampered with one of his three swine barn's. The ventilation and alarm systems had been deactivated and more than 3,000 pigs died. A police investigation is underway.

Now, the Humane Society of the United States has stepped forward to offer a reward of up to $2,500 for information leading to the arrest of the person or persons responsibe for the suffocation of 3,800 pigs.

According to the Sioux County sheriff's office, deputies were called to the swine operation on Nov. 13 by the owner, Todd Hasche.

Authorities say someone overnight had tampered with the control to the building's airflow system, causing the pigs to suffocate. Sheriff Dan Altena says the main breakers were turned off, a stand-by generator was turned off and the alarm system was disabled.

The loss of the pigs is estimated at more than $200,000.

Source: Associated Press