Government plans for a new test for Down’s syndrome are facing a backlash from medical professionals worried that the aim is partly to save NHS cash by aborting more babies with the condition.

More than 300 doctors signed a letter objecting to the test – which is 99 per cent accurate in detecting Down’s in unborn children – as the Department of Health announced its intentions to roll it out across the country.

The test has been criticised amid fears that it would lead to a generation of Down’s children being “wiped out” by a surge in eugenic abortions.