Article continues below advertisementKing Charles spoke out after his brother ex-Prince Andrew was arrested on the morning of his 66th birthday. "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," the monarch, 77, said in a statement on Thursday, February 19.