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 will be hospitalized at Rome’s Gemelli Polyclinic at the end of Friday’s daily audiences to undergo some necessary diagnostic tests and to continue his ongoing treatment for bronchitis in the hospital,

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,