The six women who are scaling The Shard building in London are just 18 metres from the top, according to Greenpeace press officer Ben Stewart.
One climber has been nominated to "free climb" the final ascent, meaning she will use no aids such as ropes.
The #iceclimb women are 18m from the top. they've chosen Wiola, 23, from Poland to make an attempt on the summit. She's going for it. Now.
Wiola is the youngest #iceclimb woman. She's free-climbing the final 18m, a third of a kilometre in the sky, right now. Yes, free-climbing.
More top news
Common antibiotics may double the risk of miscarriage in early pregnancy, research has shown.
Outbreaks of rain are set to sweep across the country, getting heavy and thundery in places.
Owners must also prove they have something to pick up dog mess with under new rules imposed by one council.