A man trying to save a dog being pulled into a stump grinder was caught in the machine and killed, authorities said.

Robert J. Wagner, 25, and his friend, John Santilli, of Port St. Lucie, were using the grinder while at a hunting camp in the River Ranch area about 9:40 a.m. Sunday, said Polk County sheriff's spokeswoman Donna Wood. Santilli's dog got entangled when the animal's leash got caught in the machine, Wood said.

Wagner tried to rescue the 6-month-old Weimaraner, but was pulled into the machine's blades. He died of lacerations and major head and body trauma, Wood said.

Deputies had to use four-wheel drive vehicles to get to the scene. Wagner and the dog were dead by the time authorities arrived.