Earlier the Iranian Ambassador met at the Foreign Office with the FCO's top civil servant and permanent under secretary, Peter Ricketts, to discuss the situation.

BBC: Iran issues warning over UK yacht crew

At the Public Accounts Committee there's a hearing (at 3.15pm) on reforming the Ministry of Defence, with evidence from Ursula Brennan, the Permanent Under-Secretary, and senior MoD mandarins.

BBC: Week ahead in Parliament

Only Sir John Chilcot, who retired as permanent under-secretary of the Northern Ireland office on the day the commission was announced, is not on record with a view.

ECONOMIST: Electoral reform: Jenkins’ ear | The