Election 2015: Cameron and Sturgeon on future of UK

Prime Minister David Cameron and SNP leader Nicola Sturgeon have spoken to Andrew Marr about the future of the United Kingdom.

Ms Sturgeon said that the "people are in charge" of any future Scottish referendum and went on to say she would not do a post-election deal with Mr Cameron under any circumstances.

David Cameron said: "The SNP is a party that doesn't want to come to Westminster to contribute to a government; it wants to come to Westminster to break up our country."