Footage on social media on Sunday evening appeared to show stones being thrown at the Lyon's bus, with head coach Fabio Grosso pictured on a stretcher and with a bloodied face.

Some windows were shattered when the bus was hit on the way to the Stade Velodrome.

The Ligue 1 match between Olympique de Marseille and Olympique Lyonnais was called off after the incident.

Marseille issued a statement condemning the attack and wishing 45-year-old Italian Grosso well.

"Olympique de Marseille deplores the unacceptable incidents which took place this evening around the Stade Velodrome, against the professional team bus as well as Olympique Lyonnais supporter buses," the OM statement read.

"The club wishes a speedy recovery to Lyon coach Fabio Grosso and strongly condemns this violent behaviour which has no place in the world of football and in society.

"Due to a handful of mindless people, the game planned for this evening was spoiled and deprived 65,000 supporters of attending a football match."

Read more from Sky News:
Toddlers 'hired' in Japanese nursing home to tackle loneliness
Liverpool striker's parents kidnapped in Colombia

The Lyon manager is a former Italy international, having scored the winning penalty kick in the shootout over France at the 2006 World Cup final.

Grosso joined Lyon as manager in September, replacing Laurent Blanc.

But the team remains winless, sitting bottom of the table.