The International Monetary Fund (IMF) is the latest organisation to have its say on the UK's referendum on EU membership.
The IMF's managing director Christine Lagarde (pictured) is expected to give a warning about the economic impact of the UK leaving the union, when she meets with the British Minister for Finance (Chancellor) George Osborne today.
The Bank of England has come under fire for saying a vote to quit the EU could lead to another recession.
The hard-hitting attack from the IMF comes as Bank of England governor Mark Carney's warning that Brexit could trigger a technical recession provoked demands for his sacking from prominent Leave campaigner, and Tory MP member of the Commons Treasury select committee, Jacob Rees-Mogg.
"Mark Carney has intervened speculatively in a political matter. It's the responsibility of the Monetary Policy Committee to be independent, and he's decided to make a deeply political choice in a referendum which is the concern of the British people, and therefore, he should be fired," the MP told Sky News.
Mr Rees-Mogg accused the governor of deliberately talking down sterling for political reasons.
"It is quite extraordinary, and I think unprecedented, for a governor of a central bank to tell people to short his own currency," he said.