Security Alert: Man Arrested Outside Buckingham Palace for Suspicious Activity.

A man was arrested outside Buckingham Palace for throwing suspected shotgun cartridges into the palace grounds. Police conducted a controlled explosion in the area as a precaution. The man was also found to be carrying a knife and has been arrested on suspicion of possession of an offensive weapon. The incident is not currently being treated as related to terrorism. The arrest comes just days before King Charles' coronation ceremony, which is expected to see heads of state from around the world attend the formal ceremony.