DAYTONA BEACH, Fla. — NASCAR and Daytona International Speedway officials confirmed that more than 30 fans were injured Saturday when debris from a 12-car crash on the last lap of the Nationwide Series opener flew into the grandstand.

The crash happened on the front stretch when leader Regan Smith tried to block Brad Keselowski. Rookie Kyle Larson helicoptered into the catch fence, near a crossover gate opening. The car penetrated the gate and caused the front-end suspension and engine to be sheared from the car and they landed on the walkway at the bottom of the stands. A tire from Larson’s car landed nine rows up in the grandstands near the start-finish line.