Rev. Billy Graham was admitted to the hospital Wednesday with a possible case of pneumonia.
Graham was taken to the Mission Hospital in Asheville, N.C., for treatment of his lungs, the Billy Graham Evangelistic Association reported on the organization's website.
He was said to be alert, smiling and waving at the hospital staff when he went in for treatment.
Graham's personal physician, Dr. Lucian Rice, said the 93-year-old evangelist is in stable condition. He was previously treated for pneumonia in May.
His sister, Jean Ford, said she's confident he's going to be fine.
"We're being told it was nipped in the bud and they're going to start treating it right away," Ford said.
The evangelist's most recent book, Nearing Home, was published last month. BGEA said he was also starting work a new project that reaffirms "the evangelistic message he has preached for more than 60 years."
No date has been set for his discharge.