Iranian pro-government Basij militia members dispersed crowds of protesters here Thursday -- sometimes with force -- witnesses said.
An estimated 2,000 to 3,000 people crowded the streets in different locations of the city, and headed toward Tehran University, the site of a student uprising in 1999. Several protesters were hit on the arms and backs by the Basij, pro-government militia members, while elsewhere riot police released tear gas into crowds.
Iran's state-funded Press TV described the crowd size near the university in the hundreds. 
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CNN's CNN's Reza Sayah and Moni Basu in Atlanta, Georgia, contributed to this report.
All About Iran • Ayatollah Ali Khamenei