Pope Francis experienced a sudden respiratory crisis on Friday, prompting medical staff to place him on assisted breathing support, the Vatican confirmed.

The episode was aggravated by vomiting, with some of the fluid aspirated into his lungs, requiring immediate medical intervention before he was placed on mechanical ventilation. A Vatican official clarified that while the 87-year-old pontiff has not been intubated, he is receiving oxygen therapy through a breathing mask.

Despite the alarming health scare, Vatican spokesperson Matteo Bruni assured that Francis “remained alert and conscious throughout.” However, doctors have cautioned that he is not yet out of danger, and his condition will be closely monitored over the next 24 to 48 hours.

This latest complication adds to the pope’s ongoing battle with lung-related illnesses. He was first hospitalized two weeks ago due to bronchitis, which later progressed to pneumonia. Since becoming pope in 2013, Francis has faced recurring respiratory issues, stemming from severe pneumonia in his youth that led to the partial removal of one lung.

The Vatican has been providing regular updates on his condition, with officials stating earlier this week that his health was “gradually improving.” However, due to his fragile state, Francis’ schedule has been cleared to accommodate intensive medical care.

On Friday, the Vatican announced that the pope will not preside over next week’s Ash Wednesday service, a significant event marking the beginning of Lent. This marks only the second time in his 12-year papacy that he has missed the occasion, with a cardinal set to lead the service in his place.

As concerns over his health grow, prayers and well-wishes have poured in from around the world. Argentinian Cardinal Víctor Manuel Fernández urged the faithful to not only pray for Francis but also for those suffering from war, illness, and poverty.

The Vatican has assured that further updates will be provided as doctors continue to assess the pope’s condition.