Iranian security forces and pro-government militiamen with batons and tear gas are clashing with thousands of opposition protesters outside Tehran University on a day of planned student demonstrations, according to reports.
The witnesses say Basiji militiamen waded into the crowds of protesters, beating men and women on the heads and shoulders with batons, while security forces fired tear gas.
Thousands of security forces surrounded universities ahead of protests that pro-reform students called for today.
It is not immediately known if demonstrations broke out inside campuses because authorities have taken dramatic steps to seal them off, shutting down cell phones in the area and covering fences with banners and signs to hide anything going on inside.