HOUSTON — Former President George H.W. Bush was admitted Wednesday to the intensive care unit of a Houston hospital with pneumonia, and his wife, Barbara, was hospitalized as a precaution after suffering fatigue and coughing, a spokesman said.

The 92-year-old former president, who had been hospitalized since Saturday, underwent a procedure “to protect and clear his airway that required sedation,” family spokesman Jim McGrath said in a statement. Bush was stable and resting comfortably at Houston Methodist Hospital, the statement said.