King Charles looked concerned after a royal fan fainted just metres away from him as temperatures soared to 30C across Britain.
The King was welcomed by crowds during his meet and greet in the centre of Pickering, North Yorkshire when the warm wether proved too much for one spectator.
As temperatures began to surge, a woman fell through the barrier just a couple of metres away from where King Charles was talking to well-wishers.
He turned and looked concerned for a moment as one of his Scotland Yard protection officers and his equerry moved to help her before a number of North Yorkshire Police officers stepped in.
As temperatures began to surge, a woman fell through the barrier just a couple of metres away from where King Charles was talking to well-wishers
PA
The monarch continued talking to hundreds of people who had gathered on both sides of Pickering's Market Place after officers assisted the woman.
Following the incident, the King worked his way up the hill, talking to residents and visiting local shops.
He stopped by several stores including a family butchers and Birdgate Chocolatiers, where he asked for Kendal Mint Cake which he said he remembered from expeditions when he was young.
During the visit celebrating the 100th anniversary of the world’s most famous locomotive, The Flying Scotsman, Charles boarded the footplate of the engine to see how the train worked after pulling into Pickering.
He travelled on the North York Yorkshire Moors Railway from Grosmont into the town to celebrate both the locomotive’s centenary and the 18-mile heritage line’s 50th anniversary.
Driver Chris Cubitt showed the 74-year-old around and later invited him to his house for tea.
Cubitt said: "He's a regular because he has been here before when he opened the station in 2000.
"I invited him in for tea, but he said he couldn't come."
King Charles travelled on the North York Yorkshire Moors Railway from Grosmont into the town to celebrate both the locomotive’s centenary and the 18-mile heritage line’s 50th anniversary
PA
King Charles also visited St Peter and St Paul's church, a renowned location known locally for its medieval wall paintings.
He was given a guided tour by Dr Kate Giles, co-director of the Centre for the Study of Christianity and Culture and senior lecturer at the University of York.
As he signed the visitors' book, the King was told by the Reverend Gareth Atha that Queen Mary had visited the church in 1937.
