The European Union expects both Russia and Ukraine to ensure that natural gas supplies to the bloc aren't disrupted, as the two countries face a spat about prices, a spokeswoman said Monday, refusing to call the situation a "crisis."

"We do expect both parties, Russia and Ukraine to ensure that there are no gas disruptions," Marlene Holzner, spokeswoman for Energy Commissioner Guenther Oettinger, said during a regular press briefing.

"We are in continuous talks with both sides on a very broad [range] of issues," she said.

The EU is particularly concerned about the relations between these two big neighbors, as much of the gas it imports from
Russia flows through Ukraine .