A 23-year-old man was arrested on Wednesday after throwing eggs and sulphuric acid at King Charles III and Queen Camilla while walking in the northern England city of York.
The incident took place as the king and his wife entered York through the Micklegate pub, a medieval gateway that traditionally welcomed the monarch into the city.
Video footage shows several eggs moving and smashing to the ground. No one appeared to have attacked the royal couple, who continued to be welcomed by local dignitaries and met with the well-wishers who gathered.
Several police officers can be seen battling a man over a crowd barrier. The PA news agency reported that protesters booed and chanted “this country was built on the blood of slaves” as they were detained.
Other members of the crowd tried to drown him by chanting “Shame on you” and “God bless the king”.
A 23-year-old man has been arrested and detained on suspicion of breaching public order, North Yorkshire Police said.
Charles and Camilla traveled to York as part of a series of events across the UK to mark the start of the new king’s reign. They attended a ceremony at York Minster, the city’s cathedral, and unveiled a statue of the king’s mother, Queen Elizabeth II, who died in September after 70 years on the throne.