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.

The Vatican said that the pontiff had pneumonia in both lungs and that he “continued to present a complex picture.”