Russia's economy faces a financial stranglehold and President Vladimir Putin's inner circle will be hit with asset freezes and travel bans under tough European Union sanctions to be agreed on in Brussels today.
The leaders of the United States, Britain, Germany, France and Italy held talks yesterday as the EU prepares to target "Kremlin influencers".
"The latest information from the region suggests that even since MH17 was shot down, Russia continues to transfer weapons across the border and to provide practical support to the separatists," British Prime Minister David Cameron's spokesman said.
"They agreed that the EU and US should continue to work together to exert pressure on Russia to change course and to engage in a political resolution to the crisis before more innocent lives are lost."
Work began yesterday in Brussels on a blacklist to confiscate assets and revoke visas of influential Russians, who often have close ties to European capitals and are regarded as "benefiting from Russian decision-makers".