A horse running down a road behind two more horses
Media playback is unsupported on your device

A troop of police horses go on the run in Mexico

3 September 2013 Last updated at 17:39 BST

They were supposed to be hard at work - standing guard as a group of protestors held a demonstration outside parliament in Mexico City...

But, they had other ideas!

A troop of 20 police horses just took off and went on the run down the city's streets, damaging cars and street signs.

Eventually they were all caught, but some of them had injuries and needed treatment from a vet.