The Tories have demanded the Office for Budget Responsibility steps in to scrutinise Labour's spending plans amid claims the 'fantasy sums' don't add up.

Conservative MP Gareth Davies, the shadow financial secretary to the Treasury, called for the watchdog to assess Chancellor Rachel Reeves' proposals.

Ms Reeves used her Spending Review on Wednesday to set out plans to 'invest' a staggering £4trillion to fund 'the renewal of Britain' over the coming years.

The Chancellor outlined day-to-day spending across Government for the next three years, as well as plans for capital investment over the next four years.

She repeatedly said the cost of her Spending Review was covered by the tax rises she brought in last year, telling Whitehall departments to now 'live within their means'.