PM says he will not ask EU to delay beyond 31 October as rebels seek to block move

Boris Johnson has issued a final Brexit ultimatum to rebel MPs by pledging to call a snap general election next month if the House of Commons pushes ahead with a bill tabled by a cross-party group of backbenchers seeking to block no deal.

In a carefully choreographed sequence, Johnson held an emergency cabinet meeting, addressed Conservative MPs at a Downing Street reception and then made a live television address outside No 10 to say there were “no circumstances” under which departure from the EU would not happen on 31 October.