Conservative leadership hopefuls have clashed over whether to back a no-deal Brexit, as party bosses tightened the rules to limit the number of candidates to succeed Theresa May.

Esther McVey said she would only have "committed Brexiteers" in her cabinet until the UK was out of the EU, which she pledged would happen by 31 October, with or without a deal.

But rival candidate Matt Hancock said no deal is "not a credible option" as he pledged to go back to the EU to discuss the Irish border issue.