We're learning more about this terrible tragedy.
We wouldn't want anyone suspicious near The Queen!!
Reports are just coming in of a 44-year-old attempting to enter Buckingham Palace via the north centre gate at about 11:30 BST, but — as he was considered a security threat — he was apprehended by police immediately.
What the heck was he trying to do???
Long live the Queen!!
[Image via WENN.]