Former President George H.W. Bush was taken to the hospital by ambulance Tuesday evening after experiencing a shortness of breath, his office said in a statement.
The former president, age 90, will be held for observation at Houston Methodist Hospital as a precaution, the statement added.
Bush spent nearly two months in the same hospital and was discharged in January 2013 after treatment for a bronchitis-related cough and other health issues.
Bush, who can no longer use his legs, most recently appeared seated in a wheelchair at an event in November at Texas A&M University with his son, former President George W. Bush.
In June, the elder Bush celebrated his 90th birthday by making a tandem parachute jump near his summer home in Maine.
The Associated Press contributed to this report.
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