Pope Francis remained stable through the day on Sunday and no longer required the use of mechanical ventilation to breathe, the Vatican said, in a sign of progress as the 88-year-old pontiff battles double pneumonia.

The health of Pope Francis remains unclear as the faithful have gathered in St. Peter’s Square nightly to pray for his recovery. The 88-year-old pontiff was hospitalized almost two weeks ago, suffering from double pneumonia and mild renal insufficiency.

Pope Francis, in hospital fighting double pneumonia, had a peaceful night and is resting, the Vatican said on Sunday.