Ed Balls: David Cameron's economic plan has failed

Changing course on the economy would plunge the UK "back into the abyss", David Cameron has said.

The warning followed suggestions by Business Secretary Vince Cable that the government should consider borrowing more to kick-start economic growth.

In a speech in West Yorkshire, Mr Cameron echoed Mrs Thatcher by saying "there is no alternative" to "sticking to the plan" on the economy.

But speaking to the BBC's Clive Myrie, the shadow chancellor Ed Balls said Mr Cameron's plan had failed.