Formula One driver Jules Bianchi is undergoing surgery after suffering a severe head injury in a crash at a wet Japanese Grand Prix.
The 25-year-old sportsman will be moved to intensive care where he will be monitored following the surgery, said world motor sport's governing body.
Bianchi lost control of his Marussia, travelled across the run-off area and hit the back of a tractor that was removing Adrian Sutil's stricken Sauber, the FIA added.
Sutil's car had "aquaplaned" off the wet track, coming off at the same turn a lap earlier and skidding into a wall.
Frenchman Bianchi was unconscious as he was transferred to hospital by road in an ambulance because the medical helicopter could not fly because of heavy rain from Typhoon Phanfone.
The driver is in a critical condition, his father reportedly said.
Typhoon rains had been forecast for the race which began behind the Safety Car - and the drivers were called back to the pits minutes later.
Following Sutil's crash, yellow flags were waved before the corner to warn drivers of the incident, according to the FIA.
The Safety Car was sent out after Bianchi's crash on lap 44 and the race was suspended two laps later with the rain getting heavier and the light rapidly deteriorating at Suzuka.
Sutil, who was not hurt in his accident, told Sky Sports F1: "The yellow flags were out after I aquaplaned at the corner as the rain got more and more.
"And one lap later with waved yellow flags Jules came around and had the same spin there.
"It was more or less the same crash, but just the outcome was a bit different."
Sutil said he felt the Safety Car should have been deployed after he crashed due to the risk of another driver going off at the corner.
"With respect to this corner I think everyone knows this is one of the most tricky corners and when it is getting late and the rain increases.
"Let's say when you have an accident there you should probably think about a Safety Car."
Williams driver Felipe Massa said "there was too much water on the track" and it was "dangerous".
He said: "In my opinion they started the race too early because it was not driveable at the beginning and they finished the race too late.
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