KIEV, Jan. 30 – A large energy company representing one of the countries neighboring Ukraine has made complaints against Ukraine to the Energy Community Secretariat, Energy Community Secretariat Director Slavtcho Neykov told reporters in Kiev last week.

"Representatives of one of the countries reported to us about problems with Ukraine, and they could be looking for a solution through the Energy Community mechanisms," he said.

Neykov did not disclose which state had complained.

"It is a neighbor of Ukraine… [but] it is not Gazprom," he said.