Pope Francis continues to show signs of improvement as he battles a severe lung infection, but his prognosis remains uncertain. Doctors report stabilisation, though he is still under close observation.

Pope Francis has shown further slight improvement as he battles double pneumonia, but doctors said Wednesday his prognosis is still guarded.

Pope Francis' condition remains critical but stable and he was able to do some work while still in the hospital with double pneumonia, the Vatican said in a Tuesday evening update.