Boris Johnson’s flagship election pledge to build 40 new hospitals by 2030 will undergo a probe by the official audit watchdog.
The National Audit Office plans a "value for money review" that could consider rising costs due to inflation - and whether the hospitals will in fact be new.
The investigation emerged in a letter to Shadow Health Secretary Wes Streeting from NAO comptroller Gareth Davies after the Labour MP warned of a waste of taxpayers' money.
