Reigning Formula One world champion Lewis Hamilton says Charlie Whiting as an "iconic figure" in the sport.
This comes after the race director's sudden death at the age of 66 on Thursday.
Whiting suffered a pulmonary embolism on Thursday morning in Melbourne, Australia according to the BBC.
"What he did for the sport, his commitment, he really was a pillar," five-time world champion Hamilton said.
"I've known Charlie since I started in 2007. Obviously, I'm incredibly shocked this morning to hear the sad news.
"My thoughts and prayers are with his family," the British racing superstar added.
"[He was] such an iconic figure within the sporting world, and he contributed so much to us. May he rest in peace."
The Britishman was serving as head of Formula 1 for motorsport's governing body the FIA.
He was set to officiate this weekend's season-opening Australian Grand Prix.