Pope Francis was in stable condition Tuesday and breathing with just the help of supplemental oxygen after respiratory crises a day earlier, but will resume using a ventilation mask at night, the Vatican said.

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

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,