Here's a report from a Tehran University student bulletin:
The continuation of clashes between Tehran University students and special security forces with the assistance of "black" plainclothes pressure groups is escalating.
Last night, security forces attacked the student campus and wounded numbers of girls and boys student and arrested tens of them. In this attack, the security forces used tear gas and air pistols.
The students responded by throwing stones and shouting "down with the dictator!" Students will die but will not accept abjectness; students also ask the people to join them. From early this morning, students gathered at Tehran University, Sharif University, and Polytechnic University and the situations there are highly critical.