Twenty-one runners have slotxo died after extreme weather struck a long-distance race in north-western China.
High winds and freezing rain hit participants in the 100km (60-mile) ultramarathon in the Yellow River Stone Forest, a tourist site in Gansu province, on Saturday.
The race was halted when some of the 172 runners went missing, and a rescue operation was launched.
Many of the stranded runners reportedly suffered from hypothermia.
Liang Jing, an ultramarathon champion, and Huang Guanjun, who won the men's hearing-impaired marathon at China's 2019 National Paralympic Games, were among the victims, state-run media reported.
Officials said 151 runners were now confirmed safe, and that eight of them were injured.
The race began at 09:00 local time (01:00 GMT) on Saturday, with some of the competitors setting off wearing just shorts and T-shirts.
Surviving participants said the forecast had shown some wind and rain was anticipated, but nothing as extreme as what they experienced.
About three hours after the start, a mountainous section of the race was hit by hail, heavy rain and gales, which caused temperatures to plummet, according to officials from the nearby Baiyin city.
One runner, Mao Shuzhi, told Reuters news agency she turned around when the weather changed.
"The rain was getting heavier and heavier," said Ms Mao, who was about 24km into the race at the time and had not yet reached the mountains.
She decided to head back to her hotel, having had previous bad experiences with hypothermia, but others carried on or were already in worst-hit areas.