"I've known Charlie since I started in 2007", Hamilton said. "Obviously incredibly shocked this morning to hear the sad news. My thoughts and prayers are with his family. What he did for the sport, his commitment, he really was a pillar Such an iconic figure within the sporting world, and he contributed so much to us. May he rest in peace," he added.
Vettel, who is again expected to be leading the pack chasing reigning world champion Hamilton, said he was still in shock following the news.
"I was as shocked as we all are, still now, when I heard the news this morning, especially because I spoke to him yesterday and walked the track for the first couple of corners together with him. It's difficult to grasp when somebody's just not there anymore", the Ferrari driver said.
"I've known him for a long time and he was sort of our man, our drivers' man. Obviously there's regulations and all that and then there's us and he was the middle man. He was someone you could ask anything, at any time. He was open to everyone, any time his door was always open.
"All our thoughts are with him and especially his family in these difficult circumstances," he added.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)