It is unclear how long Pope Francis will stay in hospital, according to a Holy See spokesperson, after he was admitted on Friday with a respiratory tract infection.

Pope Francis is continuing his treatment for a respiratory infection in hospital, where he will remain for as long as necessary, a Vatican spokesman said on Saturday. "We will see how he reacts to treatment,

Medical assessments and necessary treatments are continuing,” after Pope Francis had a “peaceful night” and read several newspapers Saturday morning.