Prince George and Princess Charlotte seen singing at the Queen's funeral

Prince George and Princess Charlotte were seen singing alongside their parents William and Kate during the state funeral of their great-grandmother Queen Elizabeth II.

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The second and third in line to the throne could be seen in television coverage, standing on either side of the Princess of Wales and taking part in the hymns.

While Prince George is 'sort of now realising how important his great-grandmother was and what is going on', Mr Hurley reported, adding that Kate feels Louis is still at a bit of a loss.

"The younger one is now asking questions like, 'do you think we can still play these games when we go to Balmoral?' and things like that, because she's not going to be there," he said.

The state funeral service, which was screened to an estimated four billion people, was conducted by The Very Reverend David Hoyle, Dean of Westminster.

Before the ceremony took place, a bell was tolled every minute for 96 minutes, to mark every year of the Queen's life.

Towards the end of the service, a silence was observed "in all UK government buildings" as well as by various private individuals, businesses and organisations.

The monumental service paid tribute to the late monarch's reign and her lifetime of service as head of state, nation and Commonwealth.

The Queen's coffin will now be transported to Windsor Castle, where she will be privately interred in the King George VI Memorial Chapel alongside her late husband, Prince Philip, the Duke of Edinburgh, who will be moved from the Royal Vault in St George's chapel.