According to Femen's blog, the purpose of the protest was "to inform high society about the inadmissibility of the presence at the aristocratic table of a primitive huckster and embezzler Poroshenko."
"Under the guise of an aristocrat lies a military looter who does not disdain earnings on the blood of his fellow citizens. Poroshenko, get the f*** out of the Ball!" the group's message continued.
Half a dozen security guards and police soon grabbed the woman, identified as one Alisa Vinogradova, and dragged her away off the red carpet as she shouted anti-Poroshenko slogans. The debacle was captured live on local television.
Femen, founded in Ukraine in 2008 but now headquartered in Paris, is known for its outrageous publicity stunts involving women baring their chests and shouting slogans to bring attention to a variety of issues. The group is particularly active in Eastern Europe, and has trolled President Poroshenko on multiple occasions.