Prince Philip, the late husband of Queen Elizabeth II, was interred in the Royal Vault at St George's Chapel at Windsor Castle on Saturday.

The interment took place after a 50-minute service attended by just 30 guests due to COVID-19 restrictions. The ceremonial funeral from behind the stately castle walls was broadcast live on television to millions across Britain and the world.

A military gun was fired to signal the start of the solemn tribute, which was observed in shops, railway stations and at sporting events across the country.

The Duke of Edinburgh died on April 9 at the age of 99 and was the longest-serving royal consort in British history. He was married to the Queen for 73 years.

The Queen made her first appearance since her husband's death and was dressed in mourning black, with a white-trimmed, black face mask.

Close family sat socially distanced and also wore face masks in the historic chapel.

In keeping with his wishes, there was no sermon, but the service reflected his love of the sea, and long association with the Royal Navy, including hymns and Bible readings.

Philip was an almost constant presence at the Queen's side during her decades-long reign that began in 1952 as Britain rebuilt from World War II, and as its global empire began to unravel.

The death of Philip, left a "huge void" in the Queen's life, according to the family, and robbed of her of the man she referred to as her "strength and stay".

The last high-profile funeral of a senior royal was for the Queen's mother, who died in 2002, aged 101.

(With input from agencies)