It was the last lap of the Nationwide Series and the field was approaching the checkered flag when the multi-car crash occurred, causing Kyle Larson to go airborne into the fence. A tire and other large pieces of debris were hurled into the stands, injuring 33 people. The entire front end of Larson's car was sheared off, and his burning engine went through a hole in the fence.
The cause of the crash has been described as a chain reaction triggered when Regan Smith, leading the race, tried to block Brad Keselowski to maintain the lead.
The president of Daytona International Speedway provided information that indicated 14 fans were treated on site and 14 were transported to the hospital. However, local officials indicated that 19 fans were taken to local hospitals and that two were in critical but stable condition.
According to Huffington Post, tomorrow's Daytona 500 is schedule to go on as planned at this time.
According to Geraldo Rivera on Fox News, NASCAR has asked YouTube to remove the videos of the event. Geraldo Rivera also reported that one of the serious victims was a child.