A group of performing monkeys in China turned violent against their trainer when he beat one of them with a stick.
The angry monkeys attacked their trainer when he beat one of them with a stick while they rode mini bicycles in a market in Sizhou, eastern China.
One of three monkeys twisted his ears and another pulled out his hair in handfuls and bit his neck.
The third one picked up the trainer's cane and started hitting him around the head with it until the stick broke.
"They were once wild and these performances don't always come naturally to them. They may have built up some feelings of hatred towards me," Times Online quoted the trainer as saying.
Meanwhile the cops are investigating allegations of animal cruelty and may confiscate the monkeys.