French Formula 1 driver Pierre Gasly says his home in Normandy was robbed and ransacked while he was racing in Sunday's Spanish Grand Prix.
The 24-year-old AlphaTauri driver posted a message on Instagram asking anyone with information to get in touch on social media.
Gasly lost expensive engraved watches, racing helmets, clothes and jewellery in the robbery.
He said: "Some people are worthless, disrespectful and contemptible.".
The Rouen-born driver finished ninth in the race at the Circuit de Catalunya on Sunday.