The 88-year-old pontiff was admitted to hospital on Friday with a respiratory infection.

It said lab tests, a chest X-ray and the Pope's clinical condition "continue to present a complex picture".

The pontiff will remain in hospital for as long as necessary, the Vatican has said.

Robert Harris' Conclave was first published in 2016 and its film version was released last year.

The Pope has had bronchitis symptoms for several days leading to other officials reading his speeches.

The royals will make a state visit to Italy in April, which coincides with their 20th wedding anniversary.

We've rounded up all the key culture releases for the week ahead, from film to music.

The Pope used his message to encourage "hope and kindness" and emphasised the importance of humility.