The US is reported to have exchanged hard words with China and India as key world trade talks dragged into a second week in Geneva.
Meanwhile in Paris, the French government rejected current proposals for a deal, saying they showed no advance on key points concerning industry.
A diplomat quoted by the AFP news agency said the blame game had started at this morning's meeting of the World Trade Organisation's 153 member states.
The US reportedly accused India and China of threatening to shatter a fragile deal reached by key parties in Geneva over the past week.
But India's Commerce Minister Kamal Nath rebutted the charge, saying the large developed countries were holding up the talks.
Mr Nath cited domestic subsidies as one of the main areas of dispute and insisted that about 100 countries backed India's position on proposals for special import tariff measures known as SSM. The SSM is a system that would allow certain countries such as India to raise their import tariffs to protect their poor farmers if imports surge over a certain level.
Talks since last Monday among ministers from about 35 key trading economies appeared to make a breakthrough on Friday, but optimism about a deal dimmed over the weekend as emerging economies held out for better terms.
