According to NBC reporter Claudio Lavanga, the Sardinia hospital where Clooney was being treated has already discharged the actor.
An ambulance later took Clooney to the nearest hospital, according to Cicognani.
It's not just the Clooneys spending the summer in Italy, George's parents and Amal's mum were also seen arriving on separate flights.
Sardinian newspaper La Nuova posted a picture from the scene showing Clooney's scooter, a Mercedes vehicle and a fire extinguisher with the caption: "George Clooney in hospital: With his bike he ended up hitting a auto that was turning". He added that Clooney would be monitored by hospital staff as an outpatient for 20 days. According to local publication La Nuova, the driver of the vehicle stayed to help Clooney while they waited for the ambulance - can you imagine realizing that you just hit George Clooney with your auto?
In pictures from the crash, obtained by the MailOnline, the auto involved in the crash appears to have a smashed windscreen, suggesting George may even have hit it during the crash.
Italian paper La Nuova reported that he was rushed to the emergency room at John Paul II Hospital, but he is not believed to be seriously hurt.
The crash reportedly went down just after 8:00 a.m. - local time - when a vehicle cut across the path George was taking on the road.
This is a developing story and will be updated when more information becomes available. He is starring in, directing and exec producing the series that's based on the seminal Joseph Heller novel and has been shooting war scenes in Italy.