Soldiers including a Royal Navy officer and a flag bearer fainted while waiting to take part in the return procession back to Buckingham Palace for King Charles’s Coronation.
During the service, the return procession began to form up, with the front at the top of The Mall near Admiralty Arch.
A small number of the troops waiting to take part required assistance after appearing to faint.
The Royal Navy officer was quickly put on to a stretcher and given medical assistance by other soldiers.
More than 4,000 ceremonial troops are taking part in the procession, escorting the King and Queen back to Buckingham Palace in the Gold State Coach.
A flag bearer also fainted and was helped by a seaman from HMS Collingwood.
Meanwhile, just after the King and Queen’s carriage rounded the corner from Whitehall into The Mall one of the horses in the procession appeared to be spooked, rearing backwards into the barriers separating the public from the route.
A female police officer appeared to be given assistance from her colleagues, limping away from the area.
Earlier, Charles and Camilla’s Diamond Jubilee Coach arrived at the Abbey, following a procession from Buckingham Palace, in the midst of a Sovereign’s Escort provided by the Household Cavalry’s Blues and Royals and Life Guards with their shining breastplates and plumed helmets and led by the Household Cavalry Mounted Regiment band.
The monarch and his wife’s entrance through the west door was heralded by a fanfare from four State Trumpeters of the Household Cavalry and the abbey congregation stood as one.
A large ceremonial procession was lined up before the King and Queen with representatives of all elements of the nation’s ceremonial and spiritual life.