Vatican officials announced on Sunday that Pope Francis is currently suffering from "mild renal insufficiency" amid his treatment for bilateral pneumonia.

Pope Francis slept comfortably without additional complications but remained in critical condition with kidney and respiratory issues, the Vatican said Monday morning.

Pope Francis remains in critical condition, according to the Vatican, with blood tests showing mild signs of kidney failure “which is currently under control,” the Vatican said Sunday, as the 88-year-old pontiff battles pneumonia in both his lungs.