One white horse seen running through central London ... after the animals broke free during a routine exercise and ran riderless through central London. "A number of military working horses ...

The practice procession resumed, and a rider in front took the lead. The riderless horse, with boots facing backward, brought up the rear. Start the day smarter. Get all the news you need in your ...

After sprinting through the inside of the field to take the lead, the riderless horse ran very wide on the turn and was making a beeline to the plastic outside rail, bursting straight through it ...

Constitution Hill jumps Aintree's final flight riderless following his fall at the previous hurdleCredit: John Grossick (racingpost.com/photos) Constitution Hill was ambling around Aintree's wash-down ...