Charlotte Motor Speedway released a statement yesterday saying the fans were injured when the cable, a nylon rope used as a guide in an overhead camera system, fell during the 121st lap of the 400-lap race in the popular stock car brand's elite Sprint Cup series.
Officials of the circuit said seven of those hurt were treated on site and released, and three others were taken to hospital for observation.
"I'm telling you, it's a hell of a mess," Former NASCAR Sprint Cup Series champion Tony Stewart told his crew via radio while the race was initially kept running under a caution flag.
Teams were allowed to repair damage thought to be caused by the debris before the race resumed.
In February, dozens of fans were injured when a crash sent Kyle Larson's car flying and debris spinning into the stands during a race in the NASCAR's lesser Nationwide Series at Daytona.
