The Vatican described his condition as critical for the first time on Saturday, reporting that the 88-year-old Francis needed supplemental oxygen and blood transfusions after a "prolonged asthma-like respiratory crisis.

Vatican City: Pope Francis remains in critical condition as he battles pneumonia in both lungs, with blood tests indicating mild signs of kidney failure, the Vatican announced on Sunday. However, it stated that the condition is “currently under control,” CNN reported.

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.