U.K. police on Thursday arrested King Charles’ brother Andrew Mountbatten-Windsor on suspicion of misconduct, according to reports.

British police were seen arriving at Andrew’s residence in Sandringham on Thursday, according to a report from the BBC and the Daily Telegraph.

Thames Valley Police said in a statement that they had arrested a man, who they did not name, in his sixties from Norfolk on suspicion of misconduct in public office and are carrying out searches at addresses in Berkshire and Norfolk.

“Following a thorough assessment, we have now opened an investigation into this allegation of misconduct in public office,” Assistant Chief Constable Oliver Wright said in the police statement.

“It is important that we protect the integrity and objectivity of our investigation as we work with our partners to investigate this alleged offence,” he said, adding: “We understand the significant public interest in this case, and we will provide updates at the appropriate time.”