Former US President George H.W. Bush has been admitted to a hospital for a mild case of pneumonia.
The 92-year-old was hospitalized in Houston, Texas, on Friday "for observation due to a persistent cough that prevented him from getting proper rest", his spokesman said.
Jim McGrath, official media representative for Bush Sr, added that the former President "is going to be fine".
In a statement, McGrath said: "It was subsequently determined he had a mild case of pneumonia, which was treated and has been resolved.
"President Bush is in very good spirits and is being held for further observation while he regains his strength."
Bush Sr is recovering at Houston Methodist Hospital, where he was admitted for more than two weeks in January after developing a previous bout of pneumonia.
The 41st US President was taken to hospital in July 2015 after breaking his neck in a fall at his home in Maine.
He appeared three months later, looking frail and in a wheelchair, to throw the first pitch at a game between the Kansas City Royals and his beloved Houston Astros.
Bush, a Republican and the nation's oldest living ex-president, served a single term in the Oval Office from 1989 through 1992.
He is the father of former President George W. Bush, who served two terms in the White House, from 2001 through 2008.