More clinical tests were being performed on the 88-year-old pope, who had part of one lung removed as a young man.

Pope Francis was in critical condition Saturday after he suffered a long asthmatic respiratory crisis that required high flows of oxygen, the Vatican said.

Pope Francis offered reflections on the most serious medical crisis of his papacy Sunday, saying in the written text of his regular Angelus prayer that he was “confidently continuing” his extended hospitalization while acknowledging that “rest is also part of the therapy.”

Pope Francis, in critical condition with a complex lung infection, rested well during a peaceful night following a respiratory crisis and blood transfusions, the Vatican said Sunday. Vatican spokesman Matteo Bruni's one-line statement early Sunday didn't mention if Francis was out of bed or eating breakfast.

Pope Francis's condition continues to be "critical" after suffering a "prolonged asthma-like respiratory crisis" earlier on Saturday, the Vatican has said. The pontiff is "more unwell than yesterday" and had received blood transfusions, the statement said.

Pope Francis, in critical condition with a complex lung infection, rested well during a peaceful night following a respiratory crisis and blood transfusions, the Vatican said Sunday. (AP video shot by

Pope Francis rested and had a peaceful night, the Vatican said on Sunday morning, after he suffered a respiratory crisis the day before in an apparent setback in his week-long battle with pneumonia.

Pope Francis was conscious but still receiving high flows of supplemental oxygen Sunday following a respiratory crisis and blood transfusions, as he remains in critical condition with a complex

Pope Francis remains in critical condition at a hospital in Rome after developing what doctors call an asthmatic respiratory crisis. As CBS News New York's Lori Bordonaro reports, Catholics from all over the world are praying he can overcome this latest setback.

The announcement on Saturday evening indicated that Francis’ medical condition had become more complicated since an update from his doctors on Friday.

Pope Francis was in critical condition Saturday after he suffered a prolonged asthmatic respiratory crisis while being treated for pneumonia and a complex lung infection, the Vatican said. The 88-year-old pope,