A man was arrested on suspicion of common assault after an egg was believed to have been thrown in the direction of Britain's King Charles during a walkabout on Tuesday.
The alleged assault took place while Charles, 74, who came to the throne in September after the death of his mother Queen Elizabeth, was visiting Luton, northwest of London.
A police spokesperson confirmed a man in his 20s had been arrested in Luton's St George’s Square and was in custody for questioning.
Last month, a man was detained by police after eggs were thrown at Charles and Camilla, his wife and the queen consort, as they carried out an engagement in northern England.
The latest incident comes as the royal family braces itself for the release of a Netflix documentary series on Thursday about the king's younger son Prince Harry and his wife Meghan, and their latest expected criticism of the royal household.
Trump set to make final decision on deal with Iran
Eight students arrested over deadly school fire in Kenya
Israeli push to take more of Gaza raises alarm
NATO member Romania says Russian drone hit apartment block
Vance says US not there yet on agreement with Iran, but close
Rescuers pull first trapped person from flooded Laos cave
Netanyahu directs Israeli forces to expand Gaza control to 70 percent
France asks prosecutor to investigate treatment of its nationals on activist flotilla
