Eric Willemsen, Associated Press via USA Today

SCHLADMING, Austria - U.S. skiier Lindsey Vonn crashed during the super-G and has been taken by helicopter to a hospital from the world championships after apparently injuring her right knee.

The four-time overall world champion lost balance on her right leg while landing after a jump. Her ski came off immediately, and Vonn slid off course and hit a gate before coming to a standstill.

Vonn received medical treatment on the slope for 12 minutes before being airlifted to the hospital.

She trailed race leader Tina Maze of Slovenia by 0.12 seconds shortly before the crash.

The race, which was postponed for 3 1/2 hours because of thick fog hanging over the course, restarted after a 15-minute delay.

The U.S. ski team saidVonn had posted the fastest first interval and was having a strong run when she went down.

Tina Maze of Slovenia provisionally won the women's super-G in 1 minute, 35.39 seconds, beating Lara Gut of Switzerland by 0.38. Julia Mancuso of the United States came 0.52 behind in third.

The men's super-G is scheduled for Wednesday.