In a tweet posted on the same day, Maryam asked the public to pray for her mother as she was undergoing a surgery.
Ami in surgery at the moment. Request you all to pray for her. Thank you. pic.twitter.com/i9Y3h5Eno3
— Maryam Nawaz Sharif (@MaryamNSharif) August 31, 2017
Nawaz saw her off before she was taken to the operation theater at a hospital in central London.
Kulsoom Nawaz underwent medical check-ups in London, after which doctors diagnosed her with throat cancer.