Great Britain have moved to the top of the medal table at the World Championships in Kazan by winning gold in the mixed 4x100m medley relay final.
Chris Walker-Hebborn, Adam Peaty, Siobhan-Marie O'Connor and Fran Halsall were selected to compete in the non-Olympic event, and it was a strong start in the backstroke leg.
Walker-Hebborn was in fourth place at the turn and put his nation on top for Peaty, who won 50m breaststroke earlier in the day, to take over.
The 20-year-old was able to surge ahead and put the Brits in the lead, while O'Connor continued the charge by pulling away from the United States.
Despite a late surge from the field, Halsall was able to bring it home for her nation to grab the team's fourth gold in a world-record time of 3:41.71.
USA claimed silver and Germany nabbed bronze.
