Pending ratification, the existing record is held by 38-year-old Australian diver Cristi Quill, who spent 51 hours, 25 minutes under water in California in July 2015. The men’s record of more than 142 hours is held by a Turkish diver, Cem Karabay.
Fawzy lives and goes to school in Sharm and had been training at weekends since she was 12 to make the record attempt, according to Al-Arabiya.
Her father, a naval officer, had inspired her to become a diver, she told the TV station, and she had trained to survive on a liquid diet and to be able to sleep for periods of time while submerged.
Another Egyptian diver, Ahmed Gabr, holds the Guinness World Record for the deepest scuba dive of 332.35m, set in 2014.