Kendall Gretsch secured the first of two American wins as she triumphed in the women's sprint sitting, clocking 22min 22.9sec to beat team-mate and double Paralympic champion Oksana Masters.

Andrea Eskau of Germany was the recipient of the bronze medal as she came through to take third.

Daniel Cnossen then completed the sprint sitting double for the US team by winning the men's event in 23:17.3.

Cnossen led home another American one-two as Aaron Pike finished second, while Taras Rad of Ukraine did enough for third.

Ukraine's Oleksandra Kononova, a multiple Paralympic medallist, sealed the women's sprint standing honours as her country clinched all three medals.

Kononova crossed the line in 20:32.6, nearly 22 seconds in front of Liudmyla Liashenko, with Bohdana Konashuk claiming bronze.

Her success was followed by Iaroslav Reshetynskyi, who won the men's visually impaired sprint race in 20:12.4.

Anataloii Kovalevskyi earned silver and Oleksandr Kazik rounded off a second Ukrainian clean sweep by finishing third.

Elsewhere, Benjamin Daviet of France, who won two gold medals at last year's Winter Paralympic Games in Pyeongchang, reigned supreme in the men's standing sprint race.

Daviet stopped the clock at 19:11.0, comfortably quicker than eventual silver medallist Grygorii Vovchynskyi of Ukraine.

The bronze medal went to Alexander Ehler of Germany, whose compatriot Clara Klug won the women's visually impaired sprint in 20:53.4.

Oksana Shyshkova and Adrianna Kaputsei, both from Ukraine, claimed silver and bronze respectively.

The event in the Swedish resort continues with cross-country action tomorrow.