British Gas Swimming Championships - in pictures

The first heats of the day are the men's 400m individual medley Photograph: Tom Jenkins for the Observer

In the women's 100m butterfly heats Ellen Gandy finished second in qualifying Photograph: Tom Jenkins for the Observer

Joseph Schenk (top) and Aaron Moores dive in the pool during the paralympic men's 200m Freestyle heats Photograph: Tom Jenkins for the Observer

Fabian Whitbread powers through the water during the heats of the men's 400m individual medley Photograph: Tom Jenkins for the Observer

Oh Seungcheol of Korea (front) dives in during a men's 100m breaststroke heat Photograph: Tom Jenkins for the Observer

The competitors in one of the mens 400m freestyle heats speed away from the start Photograph: Tom Jenkins for the Observer

Molly Renshaw turns during her Women's 400m individual medley heat Photograph: Tom Jenkins for the Observer

The last heat of the morning session is the paralympic women's 400m freestyle Photograph: Tom Jenkins for the Observer

Roberto Pavoni on the breast-stroke leg of his 400m individual medley final, which he won Photograph: Tom Jenkins for the Observer

Ellen Gandy on her way to winning her semi-final of the womens 100m butterfly. She is the quickest qualifier for the final Photograph: Tom Jenkins for the Observer

An overjoyed Robbie Renwick celebrates after winning the men's 400m freestyle final Photograph: Tom Jenkins for the Observer

Hannah Miley glides through the water during the breast-stroke part of the women's 400m individual medley final... Photograph: Tom Jenkins for the Observer

...and then takes a big gulp of air as she puts down the power during the crawl section... Photograph: Tom Jenkins for the Observer

...and then she celebrates as she wins gold Photograph: Tom Jenkins for the Observer