Pope Francis, who has been hospitalized for more than a week, remains in “critical” condition and developed an “asthmatic respiratory crisis” earlier on Saturday, the Vatican said in a statement.

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

The health of Pope Francis, who has been hospitalized for over a week with pneumonia, worsened on Saturday, raising fears that the pontiff might not survive his struggle with respiratory infections.