WARNING: Shocking images
Monkeys have reportedly killed as many as 250 dogs in one Indian district, by dragging them to the top of trees and buildings and then throwing them to their deaths.
Residents in the villages where the monkeys have gone on murderous rampages are living in fear, as some of them have also come under attack.
The monkeys are thought to be carrying out the killings as acts of "revenge", after a pack of dogs killed one of the monkey's babies.