In the men's 10 kilometre sprint, Bø triumphed ahead of his brother, Tarjei Bø to win the gold, despite a late penalty lap for missing a target.

It was his 50th IBU World Cup victory of his career.

Finishing in a time of 25min 12sec, he was 10.8 seconds ahead of his sibling, and their compatriot Sturla Holm Lægreid completed an all-Norwegian podium in third, finishing 21.6 seconds behind the lead.

Italy's Lukas Hofer and Johannes Dale of Norway both took penalty laps, ruining a chance of making the podium, but did finish in the top five.

Sweden's Martin Ponsiluoma, France's Simon Desthieux and Fabien Claude, Switzerland's Benjamin Weger and Belarus' Raman Yaliotnau completed the top 10 for the day.

Norway's Eckhoff continued her strong form in the women's 7.5km sprint, winning her second consecutive sprint race and her third victory in her last four competitions. 

Clocking a time of 23:54, a clean-shooting record ensured the gold medal ahead of Sweden's Hanna Öberg, winning the silver 29.6 seconds behind, also with a clean record.

"It was really tough, especially when I was really early, there was a lot of snow," said Eckhoff.

"It got better and better with the conditions, it was a fight out there."

Lisa Theresa Hauser of Austria missed the chance to finish in second, but although a miss on her second shooting round forced a penalty lap, she still won the bronze, as she finished 40.2 behind Eckhoff.

It marked Hauser's first individual podium on the World Cup circuit.

Finishing just off the podium was France's Julia Simon, who recovered from two missed targets in her first round to take fourth, ahead of Norway's Marte Olsbu Røiseland, who also had to take two penalty laps, ending fifth.

Evgeniya Pavlova of Russia, Marketa Davidova of the Czech Republic, Elena Kruchinkina of Belarus, Justine Braisaz-Bouchet of France and Anaïs Chevalier-Bouchet of France completed the top 10.

Prior to the event, four nations showed positive COVID-19 tests, including Russian head coach Valery Polkhovsky.

Norway, Kazakhstan and the Czech Republic also showed positive tests, but it did not affect the nations' participation in the competition.

Tomorrow will host a pursuit race for men and women, before a mixed relay on Sunday.