The three remaining candidates to replace Boris Johnson as Tory leader have signalled they would block a second referendum on Scottish independence if they take power.
Rishi Sunak, Liz Truss and Penny Mordaunt will face another ballot among Conservative MPs later today which will see one of them eliminated from the contest.
The final two will then more than a month to canvass support from Tory party members before a final winner is declared on September 5.
