Ag2r La Mondiale rider Quentin Jauregui suffered elbow injuries on stage three of the Four Days of Dunkirk after colliding with a television motorbike that took some riders the wrong way at a roundabout.
While the peloton was supposed to continue straight, the motorbike turned left, taking half a dozen riders with it.
When the driver realised his error, he pulled over to the side of the road but some of the following cyclists were unable to react in time to avoid it.
Jauregui picked himself up to finish last on the stage, 10 minutes down on winner Bryan Coquard, and tweeted after the incident that he was "bashed up" and disappointed he was hurt for Saturday's stage four.
While the consequences were not as serious as other motorbike-related incidents, it's another worrying development for race organisers. Antoine Demoitie died after a collision with a motorbike at Ghent-Wevelgem and several other incidents have seen riders suffer broken collarbones and other injuries in the past 12 months.
Thank you for reading 20 articles this month* Join now for unlimited access
Enjoy your first month for just £1 / $1 / €1
*Read 5 free articles per month without a subscription
Join now for unlimited access
Try first month for just £1 / $1 / €1