Catholic faithful in Rome and the Vatican City prayed for Pope Francis' recovery on Tuesday, after he stabilized following two respiratory crises.

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, batting double pneumonia in hospital, remained stable throughout the day on Tuesday and did not have any new respiratory crises, the Vatican said.

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 rested well overnight, the Vatican said on Tuesday, after the 88-year-old pontiff suffered a setback a day earlier as he battles double pneumonia in hospital. Francis, who has been in Rome's Gemelli Hospital since February 14,

Pope Francis suffered two episodes of "acute respiratory insufficiency" on Monday, the Vatican said, a setback for the 88-year-old pontiff as he battles double pneumonia. Francis, who has been in Rome's Gemelli Hospital since February 14,

Pope Francis suffered two episodes of acute respiratory failure Monday, the Vatican said, a fresh setback in the worst health crisis of his papacy.

The 88-year-old, who had part of one lung removed as a young man, experienced two acute respiratory crises on Monday.

Pope Francis suffered two new acute respiratory crises Monday and was put back on noninvasive mechanical ventilation, in another setback to his battle to fight pneumonia, the Vatican said.

Pope Francis suffered two episodes of acute respiratory insufficiency and went back on a ventilator as he remains hospitalized for double pneumonia, the Vatican said Monday night.