Iain Duncan Smith claims more than £10 billion of public money has been lost in fraud and error under the tax credit system put in place by Labour.
In a scathing attack on the welfare model of the last government in today's Daily Telegraph the work and pensions secretary said tax credits were "not fit for purpose", and that the system was "wide open to abuse" and "haemorrhaging money."
More top news
A former meat inspector has told ITV News that poor hygiene and ineffective regulations have left consumers at risk.
A man has been arrested in connection with the murder of a British adventurer in Brazil.
Mrs May has insisted that the Government is united on Brexit despite Boris Johnson's recent intervention.