Track motorcyclist Jason Dupasquier, 19, was seriously injured in Moto3 class time trial at Mugello on Saturday.

The Swiss driver lost control of his bike in the ninth bend of the track with devastating consequences.

Dupasquier, who had fallen at a brisk pace, was initially treated on the track and was soon rushed by helicopter to the hospital.

Ayumu Sasaki and Jeremy Alcoba, who were behind, also crashed in a hurry, but walked back from the crash site with their own help back to the depot.

Dupasquier's fate was more unpleasant.

He seriously injured his head, chest and abdomen in the accident.

He was operated on at a Florentine hospital the night before Sunday.

The condition of the Swiss adolescent has been poorly communicated, but is known to be critical.

- He has a serious brain injury.

He continues in intensive care and is in a very critical condition, the hospital was informed to AFP, according to the France 24 website.

Dupasquier’s stable Prüstel GP on Sunday released a brief Facebook update on their driver’s situation.

- Prüstel GP has decided to withdraw from today's competition.

Dupasquier’s condition is still critical, and all our thoughts are with him.

According to the Corse di Moto, Dupasquier’s parents are supporting his son in the hospital.

They traveled to Italy immediately after seeing the gruesome accident on TV.

According to the BBC, the young compatriot, Moto2 class star Thomas Lüthi, decided to skip Sunday’s race to be in the hospital with those close to Dupasquier.

Dupasquier is 12th in Moto3 World Championship points. The series is led by Finnish stable Ajo Motorsport's Pedro Aco.