The Prime Minister joined Charles and Camilla at the service held at Crathie Kirk in north-east Scotland.
Prime Minister Andy Burnham has joined the King and Queen at a church service in Scotland.
Mr Burnham was seen arriving at Crathie Kirk, a small, granite church on Royal Deeside, regularly visited by members of the royal family when they are staying at nearby Balmoral.
The late Queen was a regular and devout worshipper at the church, where former prime ministers Rishi Sunak and Sir Keir Starmer also attended services with the royals.
On Saturday, Charles and Camilla attended the annual Braemar Gathering in the Highlands.
The King and Queen were greeted by thousands of spectators at the famous Highland Games event.
