Stage three of the Flèche du Sud in Luxembourg has been cancelled after a crash involving numerous riders on a descent

A crash involving numerous riders taking part in the Flèche du Sud race in Luxembourg has led to the cancellation of stage three from Rédange-sur-Attert to Warken on Friday.

According to reports that emerged on Twitter, the race was neutralised after 30 minutes due to a crash on a descent.

Canadian squad Team Race Clean reported that police had stopped the race, and that numerous ambulances and a medical helicopter were in attendance at the scene of the incident.

Luxemburger Wort reported that some riders had collided with a wall, and that several riders were in a ‘serious condition’, with one in a coma.

Some estimate that as many as 40 riders were involved.

The UCI 2.2-ranked Flèche du Sud takes place over five days from May 4-8. Dutch rider Twan van den Brand (Cyclingteam Jo Piels) was leading the race after stage two.

A decision is due to be made on whether stage four of the race will take place on Saturday.