Oklahoma farmer killed by water buffaloes he bought at auction the day before, police say

A farmer in Oklahoma was killed by two water buffaloes that he purchased at a livestock auction the day before, police said Monday. 

Police and fire personnel were called to a farm in Jones, Oklahoma, about 20 miles northeast of Oklahoma City, on Friday around 8:35 p.m. local time about an individual who had been attacked by the animals, a police news release said. 

"Upon arrival, first responders were initially unable to reach the victim due to the aggressive behavior of the animals," the release said.