Britain's Mo Farah missed out on a fifth consecutive major championships distance double as he finished second in the world 5,000m.
The 34-year-old, who won 10,000m gold at the start of the championships, was swamped by his rivals in the final lap, with Ethiopia's Muktar Edris breaking clear to win gold.
Farah kicked again to take silver at the London Stadium in his final major track championships.
USA's Paul Chelimo claimed bronze.
Four-time Olympic champion Farah will finish his track career with a record of 10 golds and two silvers in major championships.
He is set to focus on marathons after his final track appearance at the 5,000m Diamond League final in Zurich on 24 August.
More to follow.