Swedish cross-country skier Frida Karlsson won the women’s 50 kilometres race to deny Therese Johaug home glory as the Norwegian Nordic ski world championships ended on a low, with the hosts admitting cheating amid a probe into ski-jumping suits.

Swedish cross-country skier Frida Karlsson won the women’s 50 kilometres race to deny Therese Johaug home glory as the Norwegian Nordic ski world championships ended on a low, with the hosts also under investigation in a ski-jumping suit row.