Iran's official news agency says 25 more activists and opposition supporters have gone on trial over their alleged involvement in the post-election turmoil.
The IRNA report said the prosecutor read a general indictment for the 25 saying they had been plotting the post-election unrest for years.
As the hearing opened Sunday, authorities played a film showing attacks on public property, cars and a mosque by protesters.
Earlier this month Iran held two other court sessions for more than 100 reformist politicians and activists accused of attempting to overthrow Iran's Islamic system.
Protests erupted after many believe President Mahmoud Ahmadinejad won the June 12 elections through fraud.