From The Guardian:

Cossack militia have attacked the Pussy Riot punk group with whips and removed members’ trademark ski masks in the Olympic host city.

The group had gathered in a downtown Sochi restaurant on Wednesday, about 21 miles (30km) from the Winter Olympics site. They ran out of the restaurant wearing brightly coloured clothes and ski masks and were set upon by about a dozen Cossacks, who are used by police authorities to patrol the streets.