A protester was arrested on Wednesday after throwing eggs and vitriol at King Charles III and Camilla, the queen’s consort, as they walked in the northern English city of York. The incident happened as the king and his wife entered York through Micklegate Bar, a medieval gate where monarchs are traditionally welcomed into the city. The video shows several eggs in motion and smashed on the ground. No one appeared to knock the royal couple, who continued to greet the crowds. Several police officers were seen struggling with a man at a crowd barrier. Britain’s PA news agency reported that he booed and shouted “This country was built on the blood of slaves” as he was detained. Other members of the crowd tried to drown him, shouting “Shame on you” and “God save the King”. Charles and Camilla traveled to York as part of a series of engagements across the UK marking the start of the new king’s reign. They also visited the city’s cathedral, York Minster, and unveiled a statue of the king’s mother. Queen Elizabeth II died in September after 70 years on the throne.