Met Police chief Hogan-Howe horse patrol at Chelsea-Arsenal Published duration 4 February 2017

image copyright Met Police image caption Oliver the police horse carried the weight of Britain's top cop at Stamford Bridge

Britain's most senior police officer has saddled up to join mounted officers patrolling a Premier League derby match.

Metropolitan Police Commissioner Sir Bernard Hogan-Howe kept an eye on Chelsea and Arsenal fans while perched on police horse Oliver.

The top of the table clash attracted 41,490 fans to Stamford Bridge.

A spokesman said Sir Bernard has attended patrols "quite a lot" since being appointed in September 2011.

He is due to retire next month , after five years in the role.