Sadiq Khan, Mayor of London, has said in a statement today following last night's incident at Buckingham Palace: "The Metropolitan Police have announced that the incident at Buckingham Palace last night is now being treated as terrorism. "I'd like to thank the police officers at the scene for the heroic and professional way they responded to this incident - as we have seen on a number of occasions this year - and for ensuring that not a single member of the public was injured. "My thoughts are with the officers who sustained minor injuries." He added: "As the police have said, this is a timely reminder that the threat from terrorism in the UK remains severe. The police, together with the security services, are doing everything they can to protect the public and they already have an enhanced policing plan over the Bank Holiday weekend to keep the public safe. "It is important we are all alert but not alarmed. Please report anything suspicious to police confidentially on the hotline - 0800 789 321. In an emergency always call 999. "Terrorists who seek to harm us and destroy our way of life will never succeed. London stands more united than ever."