H.R.M. King Abdullah of Saudi Arabia is well after undergoing a second operation in the United States on Friday, a leading member of the royal family said.
The royal court said earlier the King would have surgery to stabilize vertebrae in his spinal column.
Another official statement was expected later on the outcome of the operation, which followed earlier surgery in New York last week after a blood clot complicated a slipped disc.
"He is well. He had an operation today and I hope he gets better soon," Prince Turki al-Faisal, a former Saudi Intelligence Chief, told reporters on the sidelines of a Gulf Security Conference in Bahrain.
Asked when the King would return home, Prince Turki replied: "I have no idea. You will have to wait for what comes out (officially)."
Crown Prince Sultan, who has health problems of his own, returned from abroad to govern the country while King Abdullah is away for an unspecified period.
King Abdullah, who came to power in 2005, is the 6th leader of Saudi Arabia, whose political stability is of regional and global concern. The Kingdom controls more than 20% of the world's crude oil reserves, is a major holder of dollar assets and home to the biggest Arab bourse.