The NHS in England faces a huge bill for hospitals built under PFI contracts, a BBC investigation has revealed.

Although the cost of building work was just £11.3 billion, the way the repayments are structured and the cost of maintenance means that trust will end up having to pay back around £65 billion over the course of the next 30 years or so.

This will make it difficult for savings and efficiencies to be made in the service, according to economists. In some trusts repayments will take up as much as 10% of the total budget.

Although the government insists the schemes offer 'value for money', there is concern among industry experts that these fixed contracts leave NHS trust with their hands tied in terms of future spending decisions, meaning the possibility of cuts and closures in the future.