A wreck at the Daytona International Speedway shut down practice and damaged part of the catchfence on Wednesday.
The crash occurred during the first Sprint Cup Series practice on Wednesday afternoon and appeared to involve six cars.
Rookie Parker Klingerman's No. 30 car hit the fence, flipped over and slid along the safety barrier. Several other cars were involved and the crash did some damage to the catchfence near the start/finish line.
The practice was halted after the crash, but continued shortly after.
A NASCAR spokesperson says no fans were injured and all drivers have been released from the infield care center.
Crews are rushing to fix the fence, which is close to the same area where a crash injured two dozen race fans in 2013 Nationwide Series race.
In last year's crash, Kyle Larson's car went airborne into the front stretch, spraying fans with debris. NASCAR has made some improvements since then by attaching thicker cables to the fences and installing new crossover gates that take fans underneath the fence to get into the track.
Speedway officials said the crossover gates and the new cables they installed after last year's crash were not damaged.
No other information was immediately available.
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