Reuters reports that French junior trade minister Franck Riester said on Wednesday French companies needed to prepare for the risks of a 'no-deal' Brexit.

"We need to be prepared," Riester told BFM Business radio.

"We need to make sure that our British partners respect their commitments," he added.

Britain will set out new details of its blueprint for life outside the European Union on Wednesday, publishing legislation a government minister acknowledged would break international law in a "limited way" and which could sour trade talks.