According to European Commissioner for Energy Gunther Oettinger, Russia must understand that its credibility as a reliable supplier of gas falls, reports UNN citing foreign media.

Oettinger said that all parties of gas negotiations, which can resume soon, interested in entering into at least a temporary agreement. It would allow Europeans to be confident in Russian gas supplies next winter.

However, EU countries must take measures to ensure the reliability of power supply, said the Commissioner. "We have to fill the gas storage and find out whether it is possible to increase gas supplies from other sources," - said Oettinger.