As Members will be aware, there was a serious breach of security over the weekend. An intruder gained access to the roofs of the Palace on Saturday evening and was arrested in the early hours of Sunday morning. The intruder did not gain access to the inside of the building. I am grateful to the emergency services for their careful handling of the incident. The security authorities expect to be able to produce a full written report tomorrow. The House will wish to know that immediate remedial actions have been and are being taken to address failings in our security arrangements revealed by early analysis of the incident.