Jakarta – Student protesters, demanding the resignation of President B.J. Habibie, threw rocks at riot police who blocked them from marching on to Parliament Thursday.

The march through central Jakarta was the latest in a series of anti-government demonstrations by students unhappy about the pace of political reform in the world's fourth-most populous nation.

Witnesses said about 300 students marched from a college campus, shouting, "Step Down Habibie!"

They were stopped by a lines of police about two kilometers from the legislature. Traffic was blocked but there were no reports of arrests or injuries.

The protests come despite a plan to hold parliamentary elections on June 7. The ballot, to be contested by 48 parties, is expected to be the most open poll held in Indonesia since 1955.