Skyrunner Christian Stangl had to turn back from his attempt on K2. He was trying to climb via the Abruzzi Spur. One of the factors that led to him turning back was that the tents had been ripped to shreds on C2. This would have meant that he would have had to bivouac. This was considered risky.
Also Stangl has not been well apparently. He has had a cold and sore throat. So for now he is back at base camp