Six members of Femen held a bare-breasted protest in Kiev on Sunday against the visit by Belarus President Alexander Lukashenko.
The daughter of jailed former PM of Ukraine said it would be more useful for British politicians to come to Kiev.
Dozens of people were injured when Polish fans attacked Russians marching through Warsaw to celebrate June 12 Russia Day national holiday.
Around 180 people were arrested over clashes involving Polish and Russian football fans in Warsaw ahead of the Euro 2012 match.
Poland co-hosts Euro 2012 with neighbouring Ukraine and is stepping up security ahead of the tournament, which runs through July 01.
Day in Pics: 19th September
Showbiz World - September 19, 2014
iPhone6 fever grips the world