MEPs from Poland, Germany and Spain have visited Kyiv to show their support for the pro-EU protests.
The visits come amid fresh demonstrations about a possible Customs Union between Ukraine and Russia, something Presidents Yanukovich and Putin deny discussing.
One opposition leader said that an economic return to Moscow could potentially endanger unity in Ukraine, a country that borders four EU member states and is the main transit route for Russian gas to Europe.
It is hoped the presence of EU representatives will restrain Ukrainian authorities from once more resorting to violence to disperse the crowds.
“We would also try to avoid any violence in the future and the brutal attack of peaceful demonstrators. And I believe our presence here could also support this specific point,” Jerzy Buzek MEP for the EPP group from Poland told the press.
Some demonstrators also protested in defense of freedom of expression – 40 journalists were reportedly injured in attacks by riot police a week ago.
Another huge rally is expected to take place on Sunday.