Watch as mounted police officers control their horses while on patrol at the World Snooker in Sheffield.

Two officers on huge horses took control of their steeds as they set off on patrol in Sheffield city centre.
The riders steadied their mounts on Suffolk Street by the town hall before heading down Norfolk Street and on to Tudor Square, which is the focus of World Snooker activities.
After horses from the Household Cavalry bolted through central London last week, snooker fans were reassured to see the beasts under tight control.