Jamaica have set a new championship record at the World Athletics Championships, completing the 4x100m relay in a time of 41.07s in Beijing.
Shelly-Ann Fraser-Pryce ran the anchor leg for the champions, surging away from her rivals on the finishing straight to secure the gold in the second fastest time in history.
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The United States were in contention coming off the bench led by Allyson Felix, but had to settle for silver as Fraser-Pryce raced away in the closing metres, while the Netherlands also faded late on to slip back through the field.
Great Britain finished strongly to set a new national record of 42.10s, but Desiree Henry could not quite catch third-placed Trinidad and Tobago to secure a medal, finishing seven-hundredths off the podium.