Sweeney, 24, was speeding around a curve when she lost control, bounced off the walls and flew off her sled. "The crowd was stunned and went silent".
Team USA luger Emily Sweeney suffered a brutal crash in Pyeongchang on Monday night, spinning out and careening against the walls several times.
But Sweeney flashed a quick smile to reassure her fans as she walked along the track to the Olympic Village clinic for further examination. She suffered no broken bones but was taken to the hospital as a precautionary measure.
Sweeney told reporters she was okay as she was helped off the course and after being attended to the medical staff, was diagnosed with bumps and bruises.
American luger Sgt. Emily Sweeney crashed out of the Pyeongchang Olympics on Tuesday, losing control of her sled midway through the final run of the competition. "I'm very sore, and pretty stiff", she said. I'm going to get an X-ray on my back after this, but I wanted to have the last word.
"Thanks for all the support, guys". It's a bummer, for sure, and I know that I'm better than that. But here were are.
WATCH: Horror crash during luge event shocks Winter Olympics
Sweeney gave a grimaced smile and a wave to a group of soldiers cheering her on as she walked the final steps to the ambulance. Crashes, however, have not come as often as they did in the 2006 and 2010 Games, both of which left athletes openly complaining about track safety.
"I'm fine", she said 20 minutes later, wiping tears, telling the half-dozen people around her that she didn't want to go to the hospital.
Emily Sweeney starts to lose control of her toboggan before crashing.
Erin Hamlin, who carried the United States flag during the Opening Ceremony andn who won bronze in Sochi, finished sixth in her final Olympics.
The Associated Press contributed to this reported.
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And he went even further, telling students to make sure to spend time offline: "Don't spend all day online". He also sympathised with the challenges faced by young people today through the online world.