Moments after the field pulled out of the pits Dual 2 at the Chevrolet Detroit Grand Prix the pace car crashed on the front straightaway.
The Chevrolet Corvette was being driven by Mark Reuss, who is the executive vice president of global product development and purchasing and supply chain at General Motors.
The field was backed up while crews cleaned up from the crash.
Video shows the Corvette spinning and losing control before crashing into a wall. It's not clear if anyone inside the car was injured but they were being checked out at the medical center.
The cars were eventually sent out for their warm up laps and the race started about 30 minutes after the scheduled green flag.
— Matt Archuleta (@indy44) June 3, 2018
UPDATE: The race start is currently under delay due to an incident involving the pace car. The drivers are headed back to pit road. #DetroitGP
— Detroit Grand Prix (@detroitgp) June 3, 2018
— IndyCar on NBC (@IndyCaronNBC) June 3, 2018