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Britain's Katie Archibald and Emily Nelson completed a stunning victory in the madison at the Track Cycling World Championships.

Elinor Barker had been set to race alongside Archibald but withdrew after crashing in Friday's omnium.

They finished with 50 points - 15 ahead of second-placed Netherlands - to claim Britain's second gold in Apeldoorn.

Compatriot Jack Carlin added to the medal tally with silver in the men's sprint later on Saturday.

Australia's Matthew Glaetzer edged out Carlin to claim gold.

Carlin, competing in his first individual sprint at a World Championships, said he only expected a top-eight finish.

"I was very close to throwing up during the presentation," he said.

"Throwing up during the Australian national anthem probably wouldn't have gone down very well with the Commonwealth Games happening on the Gold Coast in three weeks."

Britain have now won six medals in the first four days of the competition.

The British duo of Archibald and Nelson timed their attacks well to claim maximum points in eight successive sprints in the women's madison.

Archibald twice edged out the Netherlands on the line to claim points in the sprint and headed off a push from the Dutch with 15 laps remaining.

Italy took bronze with 20 points.

The victory is Nelson's first world title - she won silver alongside Barker at last year's World Championships in Hong Kong.

"It's going to take a while for that to sink in," said the 21-year-old afterwards.

"It was really hard to see the scoreboard so I just kept going as though people were one point behind us."

The event will be part of the women's Olympic programme for the first time at the Tokyo Games in 2020.

Elsewhere, Britain's Katy Marchant finished eighth in the women's 500m time trial as Germany's Miriam Welte claimed victory in 33.150 seconds.