Police detain a participant in an unauthorized rally in central Moscow on May 31.
MOSCOW (Reuters) -- Russian riot police detained up to 30 protesters as they attempted to stage a protest calling for Prime Minister Vladimir Putin to resign.
As protesters unfurled banners calling for Putin to quit office, Russian riot police moved in and made the arrests.
There was a large police presence at Moscow's central Triumfalnaya Square where the group "Russia without Putin" had attempted to gather for the unsanctioned protest, a Reuters reporter said.
Other protesters were held as they arrived from a nearby metro station to attend the meeting.
(Reuters video of the demonstrators being arrested)