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
MI5 has reportedly launched two urgent inquiries into how it missed the danger posed by the Manchester bomber, Salman Abedi.
Helicopters are searching for survivors who may be marooned after a weekend of heavy rain.
Thousands of people attended a protest on Copacabana Beach to demand presidential elections as pressure mounts on Brazil's leader to resign.