Mrs South Africa, Nicole Capper, was airlifted to a hospital in Nepal after experiencing altitude sickness during an expedition on Mount Everest.
The 32-year-old mother of two set out on the 18-day expedition on 4 April 2018 in an attempt to raise money for Rare Diseases South Africa, which helps patients receive access to treatment.
The group had all safely reached base camp on Saturday and had begun their descent the following day. They are expected to reach the ground on Thursday.
According to fellow climber, Sarel Nong, Nicole started to experience high altitude sickness on Monday night.
He told SABC: "We were still 4 000m above sea level. We are only getting 50% of normal oxygen. She was airlifted this morning to Kathmandu hospital and we are expecting her to recover soon."