IZHEVSK, Russia -- Some 500 people staged a protest in the south-central Russian city of Izhevsk against the rising price of gasoline, RFE/RL's Russian Service reports.
The protesters marched through the city's central streets late on June 9 and gathered in front of the headquarters of the ruling United Russia party.
Izhevsk is the capital of the Republic of Udmurtia.
Gasoline prices in some parts of Russia have risen by as much as 16 percent since April.
Andrei Konoval, who is chairman of Udmurtia's Coordination Council for Civic Actions, said that police temporarily detained him and one of the organizers of the picket, Maksim Safronov.
Udmurt Interior Ministry officials say that only Konoval was detained.
Police said the protesters were detained for violating regulations on holding mass gatherings.
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