Drivers twice observed a minute's silence on Sunday in memory of French driver Anthoine Hubert, who died Saturday after a heavy crash during a Formula Two race.
Hubert's mother and brother held his racing helmet in their hands as teams and drivers stood alongside them with heads bowed in the Spa-Francorchamps paddock.
The 22-year-old Hubert, who raced for the British-owned Arden team, died after an estimated 160 mph (257 kph) collision with 20-year-old U.S. driver Juan-Manuel Correa's car as they accelerated uphill and then out of the notorious Eau Rouge corner on Lap 2.
Hubert's car sustained a huge side-on impact and span around violently. He was pronounced dead at 6:35 p.m. local time on Saturday. Correa is recovering in a Liege hospital from his injuries.