WARSAW: US Energy Secretary Jennifer Granholm on Wednesday warned against “manipulation” of gas prices in Europe, as a group of European lawmakers accused Russia of being behind price rises.

“The US has been clear that we and our partners have to be prepared to continue to stand up when there are players who may be manipulating supply in order to benefit themselves,” Granholm said in an online briefing during a visit to Warsaw.

“We want to all have our eye on the issue of any manipulation of gas prices by hoarding or the failure to produce adequate supply,” she told reporters.

“We are looking at this very seriously and we are united with our European allies in making sure you get adequate, affordable gas supply this winter,” she added.