Ivanyushchenko is a former MP from the ex-president's Party of Regions.

Yanukovych's Party of Regions, meanwhile, has disavowed its vanished leader and gone into opposition.

Most are nationalist and pro-Western, and ousted President Viktor Yanukovych's Party of Regions is not running.

Before he managed Trump's 2016 campaign, Paul Manafort was paid by Russian oligarchs to represent the pro-Russian Party of Regions.

Partial exit polls suggest President Viktor Yanukovych's Party of Regions gained the most votes, but opposition parties did better than expected.

Of course, the Blue I am talking about is an abstraction, not the blue of former president Viktor Yanukovych's Party of Regions.

On his trip to Ukraine, Giuliani huddled with a number of notoriously corrupt pro-Russian officials, including veterans of the Party of Regions.

Zlochevsky headed Ukraine's Ministry of Environmental Protection from 2010-2012 and was a member of the Yanukovich's Party of Regions.

Ukraine's opposition accuses websites affiliated with the Party of Regions of spreading government propaganda, and has incorporated the Firefox service into its wider online campaign.

Polls opened at 0800 (0600 GMT) and pit a main opposition grouping against President Viktor Yanukovych's Party of Regions.