Pope Francis suffers from acute respiratory problems, writes the Vatican, and calls the situation "critical".
The 88-year-old pope suffers from double-sided pneumonia and has received acute care at the hospital in recent weeks.
Pope Francis was affected by an isolated incident that led to vomiting and resulted in acute deterioration of the respiratory problems, writes the Vatican in a statement.
The Pope "was conscious" during the acute treatment with external respiratory assistance.
