'We will deliver' the £300m A47 upgrade, Ed Balls has said.

The Shadow chancellor said he would not 'renege 'on the government promise, and he wanted to 'dig some holes'.

He said: 'Every time George Osborne has announced his road infrastructure plans, I have supported them.

'When he announced them the first time, I supported them. When he re-announced them for the second time, I supported them, and now he has announced them for the third time, I am supporting them.

'I am not going to renege on that. I am hoping not to re-announce them. I am going to do them rather than just announce them.'

He backed the blueprint for the A47 upgrade this week.

He added: 'Don't worry. We will deliver.'