STEVENSVILLE, Mont. (AP) — The Ravalli County sheriff's office is investigating after a horse was strangled to death in its corral northeast of Stevensville over the weekend.

The Ravalli Republic reports (http://bit.ly/16LZJ9b) Patricia Cregan awakened Saturday to find her riding horse, Cooper, dead with a piece of nylon rope tied around its neck. The corral is about 100 feet from her house.

Cregan says she had raised the horse since it was a foal and that it was 7 or 8 years old.

Sheriff Chris Hoffman is asking anyone with information to call his office.