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.

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.

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