At least ten people died in Iran after avalanches and blizzards hit mountains north of Tehran, officials said.
The Red Crescent deployed 20 teams who rescued 14 climbers but several others remain missing.
The Alborz mountain range tower over the capital are popular among climbers and skiers.
Among those who died are a political activist, an academic, a doctor and a mountaineering instructor.
At one point on Friday, about 100 people were stranded high up at a ski resort when the cable car broke down.
There had been earlier warnings of bad weather and possible avalanches.
On social media, some people reported malfunctions to GPS systems, which climbers rely on in the mountains. But it is unclear if those caught up in the blizzards and avalanche were affected.
"My #Tehran under snow."
Photo by Masoud S. pic.twitter.com/E8HhXSqJ3K— Dirt Road (@pedestrian) November 24, 2016