Pope Francis' condition remained stable on Tuesday, and his prognosis remains reserved, according to the Vatican. The pope had needed medical intervention amid two episodes of "acute respiratory failure" on Monday,

The Vatican said Friday that Pope Francis is on a breathing machine after suffering a sudden respiratory episode during his hospitalization.

Pope Francis was described by doctors as being in stable condition Tuesday following additional respiratory difficulties a day prior, however, he continues to use periodic ventilation and his prognosis remains unclear.