BRUSSELS, December 9. /TASS/. No documents were signed by Russia, Ukraine and the European Union during trilateral gas talks, chief executive of Ukraine’s Naftogaz Andrei Kobolev said after meeting.
"We did not sign. No agreements were managed to be reached today," Kobolev said.
"It is impossible to buy Russian gas under the contract between Gazprom and Naftogaz without an addendum," he added.