I thank the hon. Gentleman for his questions. There are a number of points to make. First, the hon. Gentleman himself referred, as have I, to the fact that the investigation is complex. A great deal of work has been done by the security and intelligence agencies and counter-terrorism policing, but I am not in a position to speak of the details at the Dispatch Box today, because there are a lot of sensitivities, including in terms of how much of that information has come together. I know that the hon. Gentleman and the entire House will respect that.
On the wider threats, it is fair to say that from this Dispatch Box and across the House and its various Committees, including the Intelligence and Security Committee, the Foreign Affairs Committee and the Defence Committee—across all aspects of national security—we see Russia at the heart of not only the many threats that some of us see on a near-daily basis, but the type of threats that do not manifest because of the brilliant, exemplary work done by those who are employed to protect our homeland.
The hon. Gentleman referred to some of the wider work that could take place; we rule nothing out. As I said earlier in response to the questions from his colleague, the right hon. Member for Ross, Skye and Lochaber
(Ian Blackford), discussions are taking place. The UN General Assembly is taking place and the Foreign Secretary is currently at the UN. All such discussions with our allies and many of our bilateral counterparts are absolutely in flight. We are constantly having discussions—more so now, at this particularly pressing time—to consider the other levers we have and what the next steps should be.