Rishi Sunak has warned the Union is "under real risk" as a result of Nicola Sturgeon's plan to hold a second referendum on independence.
The former chancellor, who is battling Liz Truss to become the next leader of the Conservatives, made the comments in a Q&A session with party members last night.
Sunak's leadership campaign has faltered in recent days with his rival now the clear favourite to enter Downing Street.
