Driver Dan Wheldon was killed in a crash on Sunday early in the Izod IndyCar Championships in Las Vegas. Wheldon’s car was one of many that went flipped in the air and caught fire.

Wheldon would have shared a $5 million bonus with one fan if he had won the 300-mile race.

The incident on the 11th lap happened when Wade Cunningham ran into the back of J.R. Hildebrand and then Hildebrand’s car went airborne, which triggered the huge wreck. The large stretch of the backstretch was heavily littered with debris, and the SAFER barrier on the outside wall sustained significant damage.

“I’ll tell you, I’ve never seen anything like it,” Ryan Briscoe said. “The debris we all had to drive through the lap later, it looked like a war scene from Terminator or something. I mean, there were just pieces of metal and car on fire in the middle of the track with no car attached to it and just debris everywhere. So it was scary, and your first thoughts are hoping that no one is hurt because there’s just stuff everywhere. Crazy.”