Ukraine and Russia begin new gas crisis talks on Wednesday, but wrangling over Ukraine's upfront cash payments threatens to push a deal out of reach, even as temperatures have fallen below zero in Kiev.

• October 29, 2014

Ukraine's prime minister warned on Thursday of possible attempts by Russia to disrupt an election in Ukraine at the weekend, a vote being held against a background of Russian support for separatist rebels and an unresolved row over gas.

• October 23, 2014

Russia and Ukraine aim to resolve an impasse over natural gas supplies as their energy ministers meet in Brussels for talks brokered by the European Union's energy commissioner.

• October 21, 2014

Russia and Ukraine made progress on Friday towards resolving a dispute over gas supplies in time for winter, but European leaders said Moscow still had to do much more to prop up a fragile ceasefire and end fighting in eastern Ukraine.

• October 17, 2014

Russian President Vladimir Putin and Ukrainian leader Petro Poroshenko will look for ways to settle a dispute over natural gas supplies and end months of conflict in east Ukraine at talks in Italy this week.

• October 15, 2014

The Russia-led South Stream undersea gas pipeline is still going ahead, Energy Minister Alexander Novak was quoted as saying on Saturday, following concerns the European Union might be losing enthusiasm for the project.

• October 4, 2014

A European Union deal to cut fuel use and increase renewable energy would be a better punishment on Moscow than more sanctions as it would clearly show the EU means to cut reliance on Russian gas, Denmark's foreign minister said on Thursday.

• October 2, 2014

Amendments to a EU-Ukraine trade deal at the centre of tensions between Russia and the West can only be agreed between Brussels and Kiev, the head of the European Commission has said.

• October 1, 2014