Somber celebration at Pocono for Hunter-Reay after teammate Wilson airlifted from track

Ryan Hunter-Reay (28) waves his hand as he takes the checkered flag under caution ahead of Josef Newgarden (67) to win the Pocono IndyCar 500 auto race Sunday, Aug. 23, 2015, in Long Pond, Pa. Newgarden finished second. (AP Photo/Mel Evans) (The Associated Press)

Sage Karam (8) accelerates from a pit stop during the Pocono IndyCar 500 auto race Sunday, Aug. 23, 2015, in Long Pond, Pa. (AP Photo/Mel Evans) (The Associated Press)

Ryan Hunter-Reay has won the crash-filled IndyCar race at Pocono Raceway, where the focus was on an accident involving Andretti Autosport teammate Justin Wilson.

Wilson was hit in the head by a large piece of debris that broke off Sage Karam's car when Karam spun into the wall. His car veered left and directly into an interior wall.

Wilson was swarmed by the safety crew and airlifted from the track.

IndyCar had a subdued victory lane and Hunter-Reay was not sprayed with the traditional confetti. The American said after his win: "My first thoughts are with Justin. I have no details right now. It's a bit hard not knowing anything."

Josef Newgarden was second and IndyCar points leader Juan Pablo Montoya finished third.