Pope Francis suffers 2 ‘acute respiratory failure’ episodes, Vatican says

Pope Francis suffered “two episodes of acute respiratory failure” Monday, the Vatican announced.

“In the afternoon, non-invasive mechanical ventilation was resumed,” it added in a statement. “The Holy Father has always remained vigilant, oriented and collaborative. The prognosis remains guarded.”

Fox News’ Melissa Chrise contributed to this report.

This is a developing story. Please check back for updates.