Boat Race 2023: What happens when it goes wrong?

The 168th Boat Race between the men's teams from Oxford and Cambridge universities will take place on the River Thames in west London on Sunday.

The annual event attracts over a quarter of a million spectators, but it's also one of the busiest days each year for the RNLI in the capital.

With protesters, sinking boats and mutinies, the race often makes headlines for the wrong reasons.