President Joe Biden and first lady Jill Biden arrived in London on Saturday ahead of Queen Elizabeth II's funeral.

The funeral is scheduled for Monday at the Westminster Abbey. On Sunday, Biden and Jill Biden paid their respects and signed a condolence book at Lancaster House.

"The same in person as her image -- decent, honorable and all about service. We've had an opportunity to meet with an awful lot of consequential people. But I can say that the ones who stand out in your mind are those whose relationship and interaction with you are consistent with their reputation," Biden said speaking of the queen during the signing.

"It's a loss that leaves a giant hole, and sometimes you'll think you'll never overcome it. But as I've told the King, she's going to be with him every step of the way," Biden added.

A meeting between Biden and British Prime Minister Liz Truss has been rescheduled for Tuesday.

Biden is among the approximately 500 world leaders who have been invited to the funeral.

The other guests include Canadian Prime Minister Justin Trudeau, New Zealand Prime Minister Jacinda Ardern, Australian Prime Minister Anthony Albanese and French President Emmanuel Macron.

Multiple members of royal families from across Europe have also attended.