Three-time Indianapolis 500 winner Dario Franchitti was injured in a serious crash that also left 13 spectators hurt during Sunday's Grand Prix of Houston, authorities reported.
The wreck occurred in the last lap of the race, when Japanese driver Takuma Sato bumped Franchitti's car, sending it airborne into the protective fencing. The car spun multiple times against the fence, sending shards of debris flying toward the grandstands and shearing off part of its side.
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Three spectators were sent to a local hospital, where they were listed in good condition Sunday night. The rest were treated at the scene, according to Senior Capt. Ruy Lozano of the Houston Fire Department.
