British bobsleigher Serita Shone is reported to have suffered a fractured spine in a training crash in Germany.
British Bobsleigh performance director Gary Anderson told the BBC that Shone had undergone surgery following the crash. Her team-mate Fiona Harrison is said to have suffered a head injury and remains under observation.
Anderson told BBC Sport: "I can confirm they were injured during a training run for the British Championships. Serita has had spinal surgery and is still under sedation. My focus is now on the two athletes and their families."
The pair were training in Winterburg where the British Bobsleigh Championships are taking place this week.
Shone, 22, joined the bobsleigh team last month after switching from athletics where she had competed as a heptathlete.
Harrison, 29, is also a former heptathlete who has competed in bobsleigh for two years.