Updated

Authorities have arrested a Southern California man after determining that a dead horse on his property had been struck repeatedly in the head with a sledge hammer and decapitated with a chain saw.

Riverside County sheriff's Deputy Herlinda Valenzuela said Monday that Jack Ziniuk summoned deputies to his Anza home Sunday and told them his horse was having seizures after being attacked by dogs and needed to be put down.

Deputies say the horse had actually been struck on the head with a sledgehammer and decapitated. They arrested the 64-year-old Ziniuk on an investigation of animal cruelty charge after finding the animal's head had been fed to his dogs.

A call to Ziniuk's home seeking comment was not immediately returned.