Pope Francis appears to have an "early, mild renal insufficiency" as he remains hospitalized in critical condition, the Holy See Press Office said in Sunday evening update.

Pope Francis' condition remained "critical" on Sunday, but the pontiff hasn't experienced any more "respiratory crises" since Saturday evening, according to the Vatican. In its latest update on Sunday afternoon,

The Vatican said today Pope Francis remains in “critical” condition. And we are learning new information about his kidney function. NBC News’ Anne Thompson is at the Vatican.