Earlier today, a crowd of at least 25 men surrounded and attacked Mikhail Kasyanov, the chairman of the opposition party Parnas and a former Russian prime minister. Kasyanov was visiting Stavropol and meeting with locals when the group attacked.

“We already know these people's faces. They follow us from city to city, staging fights at each stop,” said Andrei Zubov, who's traveling with Kasyanov and running for the State Duma on the Parnas ticket.

In a video published by “60sec,” a YouTube channel affiliated with the group that follows and harasses Kasyanov and other opposition leaders, a man runs up to Kasyanov in the street holding an oversized plane ticket to Washington, DC—a gag meant to imply that the Parnas chairman works for the White House. Later on, a crowd assembles around Kasyanov's entourage punching, kicking, and throwing eggs and tomatoes.

While in Stavropol, Mikhail Kasyanov is presented with a plane ticket to Washington. 60sec

In response, Mikhail Kasyanov has filed a police report with the Stavropol authorities, accusing his attackers of assaulting a former state official, obstructing his constitutional right to participate in elections, committing hooliganism, and inciting others to extremism.

Andrei Zubov says the group of attackers was made up of Cossacks and members of “NOD,” the far-right National-Liberation Movement. Evgeny Fedotov, the head of NOD, denied any involvement in the incident, saying that NOD's members don't break the law.