Before the committal, her coffin was taken in a procession along Windsor's Long Walk.Earlier, the Queen’s coffin arrived at Windsor Castle for burial.

The Queen's coffin was lowered into the Royal Vault, set below the chapel, where many royal family members have been laid to rest, CNN reported.

However, the event at St. George’s marks the end of public ceremonial arrangements for the late monarch. A private burial service will be held for the family later Monday evening, the report said.

Later, the Queen will be relocated to the King George VI Memorial Chapel, located elsewhere within St. George's, where she will be laid to rest alongside her beloved husband of 73 years, Prince Philip, it added.

Britain's longest-serving monarch Queen Elizabeth II’s funeral had begun at the Westminster Abbey in London.

King Charles and other senior British royals followed Queen Elizabeth’s coffin into Westminster Abbey on Monday.

World leaders and monarchs bid farewell to the Queen. President Biden, French President Emmanuel Macron and Canadian Prime Minister Justin Trudeau are among the world leaders who have arrived at the abbey, while six former British prime ministers are also present.

Closest to the Queen's coffin were her four children and their spouses. King Charles III and his wife Camilla, the Queen Consort, sat alongside the Princess Royal and her husband, the Duke of York and the Earl and Countess of Wessex, BBC reported.

Duke and Duchess of Sussex sat directly behind the King while the Prince and Princess of Wales sat across the aisle from them.