Buckingham Palace guard slips and lands on his bottom while on duty

A Buckingham Palace guard was spotted slipping and landing on his bottom while on duty.

Anthony Smith, 45, was visiting Buckingham Palace as part of a weekend away in London.

He happened to be filming a visit to the iconic palace last Sunday (18) when an unexpected scene unfolded.

The video shows the moment the guard's foot slips from under him mid-march - and he lands on the floor on his bum.