Prince Philip.Photo: GARETH FULLER/AFP via Getty

Prince Philip

Prince Philipis remaining at the King Edward VII Hospital in London for a second night.

The royal is expected to stay overnight once again on Saturday, one day after Buckingham Palace confirmed his hospitalization on Friday.

“The Duke of Edinburgh travelled from Norfolk this morning to the King Edward VII Hospital in London for observation and treatment in relation to a pre-existing condition. The admission is a precautionary measure, on the advice of His Royal Highness’ Doctor,” the palace said in a previous statement.

Tim Rooke/Shutterstock

Queen Elizabeth

It’s unclear how long her husband will stay in the hospital — and if he’ll miss Christmas with the family.

On Saturday,The Telegraphreported thatPrince Philipis expected to join his family for the holiday: “Despite increasing fears for the Duke’s health it is hoped he will be discharged and return to Sandringham to join the rest of his family in time for Christmas.”

Can’t get enough of PEOPLE’s Royals coverage?Sign up for our newsletterto get the latest updates onKate Middleton,Meghan Markleand more!

Queen Elizabeth

Prince Philipretiredfrom his public duties in August 2017. (He has also been absent from Trooping the Colour celebrations since his retirement.)

He abruptly canceled his appearance at the traditional Maundy church service that he was scheduled to attend with the monarch in March 2018. Philip also skipped Easter Sunday services last year ahead of the announcement that he underwent hip replacement surgery.

The royal also had a scarycar accidentin January that resulted in him voluntarilygiving up his license.

Last month,Prince PhilipandQueen Elizabethmarked their 72nd wedding anniversary but they spent the day apart due to her solo duties in London.

source: people.com