Police in Switzerland are investigating a home invasion in which four-time Formula 1 world champion Alain Prost was reportedly injured.

A 71-year-old suffered a head injury after "several masked individuals broke into the house" in Nyon at around 8.30am on Tuesday, forcing another family member to open a safe, local police said in a statement.

According to reports, including from the Swiss tabloid, Blick, the injured party was Mr Prost, and it was his son who was forced to open the safe.

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"The perpetrators entered the residence while the occupants were present, threatened them, and forced one family member to open a safe before fleeing with the stolen goods," according to the public prosecutor's office.

What was stolen is "currently being assessed".

Police "immediately deployed a large-scale search operation and notified the public prosecutor's office, which opened a criminal investigation".

"The investigation is ongoing to identify and apprehend the perpetrators," the statement said.

No arrests have been made, police said, adding that officers are working out what was stolen.

As well as the Vaud police, a host of other agencies were involved, including regional Swiss and French police, science officers, customs investigators, and a psychological support team for the family.

Blick said Prost was "visibly shaken by this brutal intrusion" and that he's left the home beside Lake Geneva.

The Frenchman, known as 'Le Professeur', won four F1 world championships between 1985 and 1993, sharing a legendary rivalry with Brazilian driver Ayrton Senna.

(c) Sky News 2026: Alain Prost: Formula 1 legend 'injured during home invasion' in Switzerland