Dina Asher-Smith claimed a historic hat-trick at the World Championships as Great Britain's women's 4x100 metres relay squad won silver.
The 23-year-old becomes the first British athlete to win three medals at the same World Championships.
She had already claimed 200m gold and 100m silver at the Khalifa International Stadium.
Great Britain's women's relay squad of Asha Philip, Asher-Smith, Ashleigh Nelson and Daryll Neita clocked 41.85 seconds in Doha on Saturday, with Jamaica victorious and the United States third.
Minutes later, the men's 4x100m team also clinched silver, behind the Americans.
The team of Adam Gemili, Richard Kilty, Zharnel Hughes and Nethaneel Mitchell-Blake ran 37.36 seconds as they failed to defend the title won in London two years ago.
The USA dominated to take the title in 37.10secs while Japan were third