About 30 demonstrators were protesting the treatment of ethnic Azeris in Iran.
Police detained a dozen demonstrators from the opposition Popular Front.
Azerbaijani opposition parties and Iranian Azeri dissidents claim scores of Azeris have been killed and hundreds arrested at protests in northern Iran since May.
(AFP, Turan)
RFE/RL In Azeri
RFE/RL In Azeri
Visit RFE/RL's Azeri-language website, featuring news, analysis, features, streaming audio, and more in Azeri, courtesy of RFE/RL's Azerbaijani Service.
