Dressel wins third Tokyo gold

American Caeleb Dressel set a world record to win the men's 100m butterfly as he gained his third gold medal of the Tokyo Olympics.

Fellow American Katie Ledecky won the 800m freestyle gold for the third successive Olympics, while Australian Kaylee McKeown took gold in the women's 200m backstroke.

Meanwhile, Great Britain claimed a fourth swimming gold at an Olympics - the first time in 113 that they have won so many - by setting a world-record time to take victory in the inaugural 4x100m mixed medley relay.

It has been a disappointing Games so far for the American swimming team, with eight gold medals - only half of their total from Rio 2016.

"It took a world record to win the Olympic final.

It is Dressel's second individual gold of the Games after his victory in the 100m freestyle.

He also won gold in the 4x100m freestyle relay.

Ledecky, meanwhile, won her sixth Olympic gold with victory in the 800m freestyle.

While Titmus had to settle for silver, there was gold for her team-mate McKeown, who completed the backstroke double with a perfectly timed swim!

Canada's Kylie Masse, who had led for the first 150m, took the silver with Australian Emily Seebohm earning the bronze medal