ROME — Pope Francis remained in critical condition Sunday and blood tests show early kidney failure but he remains alert and “well-oriented,” and attended Mass, the Vatican said, as the 88-year-old pontiff battles pneumonia and a complex lung infection.

Pope Francis, in critical condition battling double pneumonia, had a "good" night in hospital, slept and is resting, the Vatican said on Monday. The 88-year-old pope was admitted to Rome's Gemelli hospital on February 14 after having trouble breathing for several days,

Francis remains in critical condition but has not suffered any additional crises, the Vatican said Sunday evening, after reporting Saturday the pope suffered a “long asthmatic respiratory crisis” days after he was hospitalized for pneumonia.