Pope Francis, who has been hospitalized since last week, was found to have pneumonia in both lungs following a CT scan on Tuesday, the Vatican said, with tests continuing to indicate “a complex picture” for one of the oldest popes in the church’s history.

The Vatican said Pope Francis’ respiratory infection also involves asthmatic bronchitis, which requires cortisone antibiotic treatment.

Pope Francis is being treated for pneumonia in both lungs, according to the Vatican on Tuesday. CBS News senior foreign correspondent Seth Doane has more on the pope's condition.