Pope Francis suffered two episodes of "acute respiratory insufficiency" on Monday as the 88-year-old pontiff continues to battle pneumonia, according to Vatican News, citing the Holy See Press Office.

Pope Francis suffered two new episodes of acute respiratory crises Monday and was put back on noninvasive mechanical ventilation

Francis had inhaled “copious” amounts of mucus in another setback in what has become a more than two-week battle to overcome a complex respiratory infection and pneumonia.