King Charles has spoken out about his brother Andrew Mountbatten-Windsor’s arrest.

The former Prince Andrew was arrested on suspicion of misconduct in public office at his new home on the Sandringham Estate on the morning of his 66th birthday.

The monarch said he “learned with the deepest concern” of his younger brother’s arrest and “the law must take its course”.

Andrew and King Charles at the funeral of the Duchess of Kent at Westminster Cathedral on September 16, 2025. (Chris Jackson/Getty Images)

“What now follows is the full, fair and proper process by which this issue is investigated in the appropriate manner and by the appropriate authorities,” he said.

“I have learned with the deepest concern the news about Andrew Mountbatten-Windsor and suspicion of misconduct in public office.

“What now follows is the full, fair and proper process by which this issue is investigated in the appropriate manner and by the appropriate authorities.

“In this, as I have said before, they have our full and wholehearted support and co-operation.

“Let me state clearly: the law must take its course.

“As this process continues, it would not be right for me to comment further on this matter. Meanwhile, my family and I will continue in our duty and service to you all.

“Charles R.”

Buckingham Palace and King Charles were reportedly not given advance warning of Andrew’s arrest (Getty)

Thames Valley Police full statement

Thames Valley Police has opened an investigation into the offence of misconduct in public office.

As part of the investigation, we have today (19/2) arrested a man in his sixties from Norfolk on suspicion of misconduct in public office and are carrying out searches at addresses in Berkshire and Norfolk.

The man remains in police custody at this time.

We will not be naming the arrested man, as per national guidance. Please also remember that this case is now active so care should be taken with any publication to avoid being in contempt of court.

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

“It is important that we protect the integrity and objectivity of our investigation as we work with our partners to investigate this alleged offence.

“We understand the significant public interest in this case, and we will provide updates at the appropriate time.”
Source: https://www.9news.com.au/world/andrew-mountbatten-windsor-arrested-king-charles-iii-reacts/0717d837-8616-4e0d-8e8c-f185dc1c8a77