French ski mountaineering champion Adèle Milloz falls to her death in climbing accident

Former ski mountaineering champion Adèle Milloz has died at the age of 26 while climbing in the Mont Blanc range in the French Alps, the French Mountain and Climbing Federation announced Saturday.

"Adèle was a luminous young woman," Olivier Greber, chairman of the Company of (Mountain) Guides of Chamonix, told The Times of London. "The whole company feels infinite sadness today."

Milloz was in training to become a mountain guide when she and another woman were seen falling by another group of mountaineers on Friday, the Times reported. The cause of the accident is still being investigated.

Milloz was a junior world sprint champion in ski mountaineering, a sport in which participants hike up a mountain and then ski down. She also won a gold medal at the Winter Military World Games in Sochi in 2017, but retired from competition in 2019 to focus on training to become a professional mountain guide.

Ski mountaineering, or skimo, will be included in the 2026 Winter Olympics for the first time.

This article originally appeared on USA TODAY: French ski champion Adèle Milloz dies in Mont Blanc climbing accident