Serbian mountain climber Dren Mandic was killed in a fall while trying to reach the summit of K2. Many other climbers died later in what was described as the worst climbing accident on the mountain in history.The New York Times: At Least 9 Climbers Die on Pakistan’s K-2 Mountain (August 3, 2008)

It's believed Mandic and another climber died in falls as they worked their way up the mountain. The other deaths, caused by an ice column holding fixed ropes giving way, occurred after the climbers had reached the summit and were descending the mountain.Guardian Unlimited: Eleven dead in K-2 climbing disaster(August 4, 2008)

1. Mandic fell somewhere around Camp IVThe Adventurist: Tragedy On K2: Confusion–Climbers Missing–Deaths and Injuries Abound–Climbers Still Trapped In K2’s Deathzone(August 2, 2008)
2. Body found near Camp 3The Adventurist: Tragedy On K2: Confusion–Climbers Missing–Deaths and Injuries Abound–Climbers Still Trapped In K2’s Deathzone(August 2, 2008)
3. 650 m fallThe Adventurist: Tragedy On K2: Confusion–Climbers Missing–Deaths and Injuries Abound–Climbers Still Trapped In K2’s Deathzone(August 2, 2008)
4. The fall happened 400m from the summit of K2Times Online: Climbers missing after K2 triumph(August 4, 2008)
5. 22 climbers taking on K2 that day
6. Climbing as part of a Serbian K2 expedition
7. 11 killed including Mandic
8. Mandic and other killed in a K2 gully known as the "Bottleneck"
9. Survivor Wilco Van Rooijen, a Dutch climber, said badly positioned ropes were to blame for the deaths
10. K2 height: 28,251 feet or 8,611 metersAFP: Several Climbers Dead Or Missing on K2: Spanish Media (August 3, 2008)