RIYADH, 22 September — Malaysian Siamese twins, who were successfully separated by Saudi surgeons at King Abdul Aziz Medical City here on Tuesday, are in stable condition, the hospital said yesterday.

Prince Miteb ibn Abdullah, assistant deputy commander of the National Guard, yesterday visited the hospital to inquire about the twins’ condition and commended the Saudi surgeons for a work well done.

Prince Miteb visited the hospital on the directives of Prince Abdullah, the regent, who earlier ordered authorities to make arrangements for the operation. A 41-member team, led by Dr. Abdullah Al-Rabeea successfully conducted the complex 17-hour surgery.

Dr. Fahd Al-Abdul Jabbar, executive director of health affairs at the National Guard, and Dr. Rabeea briefed the prince on the condition of the twins. The medical city had earlier separated two sets of conjoined twins.

The twins, named Ahmad and Mohammed Rahman, were connected to a life support system soon after the operation. "On the second day, their condition became stable gradually and the following day the functions of main organs including heart, blood circulation and respiratory system returned to normal," the hospital said.

"This is a big achievement for Saudi doctors," Prince Miteb said, adding that the whole world had watched it through the Internet. "I am sure that every member of the medical team who took part in the operation would be extremely happy for this achievement. We are proud of them," the prince told a press conference.

Nine of the 10 surgeons who had taken part in the operation were Saudis. "The team included a Saudi female anesthesiologist. It was her first such operation," the prince said. "The Saudis prove their worth whenever they get an opportunity," Prince Miteb told reporters.

Asked about the health care to be provided to the twins, he said: "The medical team has said that the twins should be given special health care for about two months. If they need more time, we are ready for that."

He also thanked the National Guard’s computer department for the live coverage of the event.