AP, via SI.com, reports "Indianapolis 500 winner Dan Wheldon died Sunday in a fiery 15-car wreck at Las Vegas Motor Speedway when his car flew over another on Lap 13 and smashed into the wall just outside turn 2. Wheldon was 33. Drivers were told of Wheldon's death in a meeting about two hours after the fiery, smoky crash that many drivers said was the worst they had ever seen."

Today's was the last race of the IndyCar season.

Portions of the crash video posted earlier were taken from Wheldon's car via ESPN's "On Board" cameras. Here's video of the announcement: