Pope Francis' condition appeared to stabilize on Tuesday morning after medical intervention amid two episodes of "acute respiratory failure" on Monday, Vatican sources told ABC News. The pope, 88, was taken off noninvasive mechanical ventilation and resumed receiving supplemental oxygen through a nasal tube,

Pope Francis is in stable condition after his episodes of acute respiratory failure on Monday, the Vatican said Tuesday.

The announcement on Saturday evening indicated that Francis’ medical condition had become more complicated since an update from his doctors on Friday.