EU Energy Commissioner Kadri Simson told European energy ministers that Brussels' competition police had started gathering evidence on whether soaring energy prices can be blamed on illegal activity by any of the bloc's main gas suppliers.

The gas supplier which is not mentioned is Gazprom. EU is taking its usually effective actions against the Russian gas monopoly: competition law is EU’s most powerful policy in this case.

Brussels will try to collect evidence of the company withholding supply to increase prices. The European Commission can issue a fine of up to 10 percent of a company's turnover in a financial year.