By the CNN Wire Staff

Updated Monday 5:30 a.m.

(CNN) - Evangelist Billy Graham was admitted to a hospital overnight for treatment of a pulmonary infection believed to be bronchitis, a North Carolina hospital and his evangelistic association said.

"Upon admission, he was alert and in good spirits," said the statement, which was released both by Mission Hospital in Asheville and the The Billy Graham Evangelistic Association.

The 93-year-old also was hospitalized for pneumonia last November, six months after similarly being admitted to a hospital for the same condition. Since then, he has remained "in good overall health ... though he continues to remain at home due to age-related conditions," according to the hospital and the association.