Ukrainian President Petro Poroshenko says Ukraine undertook to bring domestic prices of natural gas to the level of those on the international market way back in 2008, which was stipulated in a document signed by the then prime minister.
UNIAN: Poroshenko says Ukraine undertook to raise domestic gas prices way back in 2008
Journalists observe a gas installation during a training exercise for handling emergencies at a gas-pumping station on the gas pipeline in the small town Boyarka on April 22, 2015 in the Kyiv region.
