While descending from the summit, at 8,450 m (27,720 ft) and still in the death zone, Purja and his team encounter two stricken Indian climbers (later identified as Kuntal Karar and Biplab Baidya);[8] despite giving them all their oxygen and waiting for 12 hours for help which never arrives, one dies in Purja's arms, while the other succumbs at camp 4 – Purja suffers HACE helping a third lost climber.[4][8]