A raging swarm of 20 monkeys attacked and killed a man as he screamed for help in an Indian village.

Ramnath Chaudhary, a retired clerk of the local sugar mill, was ambushed to death when he was collecting fodder for his cattle in the Madhubani district of Bihar - a state of eastern India, south of Nepal.

The incident has caused immense panic among the local residents in the Shahpur village.

On Sunday, Chaudhary, 67, arrived to his farm to collect fodder when a group of 20 monkeys attacked him.

He fell over, screaming for help, but nobody was in the immediate area.