Denmark’s Magnus Cort Nielsen has won the 10th stage of the Tour de France, beating Australia’s Nick Schultz in a photo finish, after an interruption by climate activists on a 148.5 kilometre Alpine trek from Morzine.

The race was stopped for about 10 minutes on Tuesday after half a dozen climate activists tried to block the riders, 36 kilometres from the finish.

They were dragged off the road by police and a senior race organiser before the race resumed.

Cort Nielsen prevailed in a nailbiting sprint finish from the day’s breakaway to claim his second career stage win on the Tour after 2018.

Australia’s Schultz took second and Spain’s Luis Leon Sanchez was third.

Slovenia’s twice defending champion Tadej Pogacar, who has lost two members of his team after they left the race following positive COVID-19 tests since the start in Denmark, retained the overall leader’s yellow jersey.

Earlier in the day, Australia’s Luke Durbridge and New Zealand’s George Bennett – Pogacar’s UAE Emirates teammate – were forced to withdraw after testing positive for COVID-19.

A 25-man breakaway took shape after an extremely fast start, featuring former stage winners Cort Nielsen, Sanchez, Ion Izaguirre, Edvald Boasson Hagen, Philippe Gilbert, Simon Clark, Pierre Rolland and Lennard Kaemna.

Sanchez made his move six kilometres from the line but was caught by Matteo Jorgenson, Schultz and Dylan van Baarle.

As the four played cat and mouse in the final straight, Cort Nielsen surged from the back and outsprinted Schultz for a photo-finish victory.

Germany’s Kaemna, who was in the leading group all day, came close to snatching the overall lead and now sits in second place, 11 seconds behind Pogacar, after the bunch crossed the line eight minutes and 25 seconds off the pace.

Dane Jonas Vingegaard, second overall last year, slipped to third, 39 seconds behind the leader.

Wednesday’s 11th stage is a brutal 151.7-kilometre mountain trek from Albertville to the Col du Granon.