Norway claimed victories in both team relay events at the International Ski Federation (FIS) Cross-Country World Cup in Lahti.
The Norwegian team enjoyed a comfortable victory in the women’s 4x5 kilometre event at the Finnish venue.
Tiril Udnes Weng, Ingvild Flugstad Oestberg, Therese Johaug and Heidi Weng combined to impressive effect to triumph in 50min 4.8sec.
The quartet enjoyed a 30.3 second cushion over the Finnish team.
The home team of Johanna Matintalo, Kerttu Niskanen, Laura Mononen and Krista Parmakoski finished as the runners-up in 50:35.1.
Sweden’s Charlotte Kalla, Frida Karlsson, Rebecca Oehrn and Maja Dahlqvist rounded off the podium places in 52:00.
The men’s 4x7.5km relay proved a closer contest, with the top four teams ending within three seconds of each other.
Norway’s team of Paul Golberg, Hans Christer Holund, Sjur Roethe and Johannes Hoesflot Klaebo clinched victory in 1:09.53.
The quartet ended 1.2 seconds clear of their nearest challengers Beda Klee, Dario Cologna, Jason Rueesch and Roman Furger of Switzerland.
Ilia Semikov, Alexander Bessmertnykh, Denis Spitsov and Andrey Melnichenko of Russia ended 0.5 seconds further back to round off the podium.
Italy finished outside the medal positions in fourth, ending 2.4 seconds behind the winners.