The prime minister has said the chances of leaving the EU without a deal are “touch and go” – having previously said they were “a million to one”.
In a BBC interview at the G7 summit in France, he said it “all depends on our EU friends and partners”.
When pressed on the chances, he said: “I think it’s going to be touch and go. But the important thing is to get ready to come out without a deal.”
Mr Johnson has repeatedly said the UK will leave the EU on 31 October.