2-time Indy 500 winner Dan Wheldon has died after being involved in a 15-car crash at Las Vegas Motor Speedway.  Wheldon was 33.

ESPN reports:

Dan Wheldon, the 2011 Indianapolis 500 winner and one of the most popular drivers in open-wheel racing, died Sunday at Las Vegas Motor Speedway in a horrific multi-car crash only 11 laps into the IndyCar Series season finale.

Officials decided to call the race, but the drivers did a five-lap tribute to Wheldon. IndyCar Series CEO Randy Bernard made the officials announcement of Wheldon's death without further comment.

"IndyCar is very sad to announce that Dan Wheldon has passed away from unsurvivable injuries," Bernard said. "Our thoughts and prayers are with his family today. IndyCar, its drivers and owners, have decided to end the race. In honor of Dan Wheldon, the drivers have decided to do a five-lap salute in his honor."