The Vatican says Pope Francis, who is hospitalized in critical condition with double pneumonia, was well enough to meet with Cardinal Pietro Parolin.

Pope Francis remained in critical but stable condition Tuesday, with his blood parameters remaining stable as he works from the hospital while battling double pneumonia, the Vatican said. The Vatican's evening update said the 88-year-old pope underwent a follow-up CAT scan in Tuesday evening to check the lung infection.

Pope Francis met with the Vatican's secretary of state, Cardinal Pietro Parolin, on Monday as he rested comfortably throughout the night into Tuesday, but he remained in critical condition.