Supermarket chain Sainsbury's reported half-year underlying pre-tax profit fell 6.3 percent to £375 million ($596.8 million).
Just days before Germany's third quarter GDP data is released, policy makers warn the euro zone's largest economy could face recession.
President Vladimir Putin said there were no "fundamental economic reasons" for the ruble's recent slide, but analysts beg to differ.
Societe Generale highlights results in a "difficult environment" while rival Credit Agricole criticizes "lack of coherence."
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