YouTubers driving a Lamborghini while filming a video crashed into a family car in Rome, killing a five-year-old boy and injuring his mother and sister, Italian media reported Thursday.

Three of the five people in the sports car belong to a group called “Theborderline”.

They were taking part in a challenge to spend 50 hours straight in the luxury vehicle, according to the reports.

The crash happened Wednesday afternoon and the boy died on the way to hospital, the reports said.

One member of the group, which has 600,000 subscribers, said in an Instagram post Thursday that he had not been the one driving, and sent his thoughts to the five-year-old victim’s family.

Italy’s Transport Minister Matteo Salvini said on Facebook he could “propose and approve a new highway code… But in the face of a certain stupidity, which turns into tragedy, we can do nothing”.

The prosecutor in charge of the investigation into the crash did not reply to an AFP request for information. (AFP)