SNP's Nicola Sturgeon: 'We can lock Tories out'

Ed Miliband has ruled out a Labour-SNP coalition in the event of a hung Parliament after May's election.

The Labour leader said any alliance would "not happen" as there were "big differences" between the two parties.

But SNP leader Nicola Sturgeon said Mr Miliband's comments did "not change anything", as the parties could still reach an informal arrangement to "keep the Tories out of power".