Ukraine, Russia Gas Clash Raises Threat to Europe's Supply
By Elena Mazneva, Anna Shiryaevskaya & Daryna Krasnolutska
Latest Russia-Ukraine updates: Kyiv to halt some Russian gas flow
By Sasha Petrova, David Child & Mersiha Gadzo
Ukraine Reduced Russian Gas Flowing to Europe Through Key Pipeline
By Joe Wallace & Jenny Strasburg
Ukraine halts some Russian gas flows to Europe
By Anna Cooban & Mark Thompson
Ukraine to halt key Russian gas transit to Europe, blames Moscow
By Pavel Polityuk & Susanna Twidale