Pope Francis, who is in critical condition in hospital battling double pneumonia, is alert, rested well throughout the night and is continuing his treatment, the Vatican said on Tuesday. The 88-year-old pope is spending his 12th day at Rome's Gemelli hospital,

Pope Francis, head of the Roman Catholic Church, has held his title for 12 years. What to know about the Jesuit.

The Vatican announced that Pope Francis is battling double pneumonia, which has led to breathing difficulties. His infection is considered complex.