Mick Schumacher will not contest the Saudi Arabian Grand Prix following his terrifying crash during qualifying on Saturday.
Haas driver Schumacher hit the concrete barrier at Turn 12 at 170mph during Q2, resulting in a red flag that halted the session for almost an hour.
The 23-year-old was removed from the car and deemed to have no injuries following an assessment at the Jeddah Corniche Circuit's medical centre, though he was transferred to King Fahad Armed Forces Hospital for precautionary checks.
Haas later confirmed Schumacher would not take part in the race on Sunday and the team would only run Kevin Magnussen's car.
"Hi everyone, I just wanted to say that I'm ok," Schumacher posted on Twitter.
"Thank you for the kind messages. The car felt great ... we'll come back stronger."
Team principal Gunther Steiner said: "The best thing is that Mick has apparently no injuries. He's in the hospital right now and being evaluated by the doctors, so he is in good hands at the moment.
"There is a possibility that he'll have to stay for observation overnight at the hospital. Based on these facts and where we are, we have decided not to field his car tomorrow."
Magnussen will start in 10th after reaching Q3 for the second successive race.