The already twice-postponed Daytona 500 was brought to a halt on Lap 160 on Monday night when a fire erupted on the backstretch after a collision between driver Juan Pablo Montoya and a jet dryer.
Montoya had just exited pit road under a caution after checking on a vibration when his car suddenly veered to the right and spun into one of the jet dryers, which was blowing debris from the track.
The dryer holds approximately 200 gallons of jet kerosene.
Montoya was not injured. The driver of the jet dryer, who was not identified, was transported to Halifax Medical Center for further evaluation.
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With the race under red, Dave Blaney was the race leader, with Landon Cassill second, Tony Raines third, David Gilliland fourth and Matt Kenseth fifth.
The race was not restarted in time for publishing deadlines.
The 500, which had never been postponed in its 54-year history, was rescheduled for noon Monday after rain on Sunday.
On Lap 2, Elliott Sadler hit Jimmie Johnson in the left-rear - the way most accidents have happened the past two weeks - sending Johnson's No. 48 Chevrolet hard into the wall.
The wreck collected Kurt Busch, Danica Patrick, David Ragan and Trevor Bayne. Kevin Harvick also sustained some light damage in the aftermath.
On Lap 100, Denny Hamlin helped Martin Truex Jr. to the lead which allowed him to claim the $200,000 halfway bonus.