At least 28 fans and one driver were injured after a multi-car crash at the Daytona speedway when car debris flew into the crowd near the end of the Nationwide NASCAR race.
Race officials said 14 fans were sent to nearby hospitals, with another 14 being treated at the Florida speedway, which will host the prestigious Daytona 500 race on Sunday.
Driver Michael Annett of the Richard Petty Motorsports team was being treated at the Halifax Health Medical Center in Daytona Beach and would be kept for observation, the team said in a statement.
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Downpours keeping us on our toes today
The M20 in Kent has been closed in both directions after a pedestrian bridge allegedly collapsed on the motorway on Saturday.
The AA have warned of traffic jams and urged people to carry extra water in their vehicles because of the warm weather.