Russian ski jumper Mikhail Maksimochkin was carried off the hill by paramedics after falling while landing during training Wednesday night for the individual large hill event at the Sochi Olympics.
Paramedics immobilized Maksimochkin with a neck and back brace and strapped him down on a stretcher before taking him away.
He was later taken from the RusSki Gorki Jumping Center in an ambulance escorted by a police car. His condition was not immediately known.
Maksimochkin attempted to stand up after falling, his skis separated by at least 10 meters. He then collapsed on the icy landing area, and medical officials rushed to his aid.
The incident came after high winds delayed the start of the first round and forced the cancellation of a third round.
The training jump continued after Maksimochkin was taken from the hill. He was the 37th of 70 scheduled jumpers in the round.
Among those jumping Wednesday was Thomas Morgenstern of Austria. The three-time Olympic champion was hospitalized with skull and lung injuries after a training crash on Jan. 10, four weeks after suffering facial cuts, bruises and a broken finger following a bad landing during a World Cup event.
Simon Amman of Switzerland, the defending champion from Vancouver in 2010, was among those in the field. Also jumping were Sunday's normal hill gold medalist Kamil Stoch of Poland, silver medalist Peter Prevc of Slovenia and Anders Bardal of Norway, who earned bronze.
The gold medal in the large hill will be awarded Saturday night.