Four pro-democracy activists went on trial Wednesday, just days after the first convictions of leading figures in the 1989 mass movement for a more open society and political system.

A fifth was in the second day of his trial.Notices posted outside the Beijing Intermediate People's Court announced the opening of trials for student leader Guo Haifeng and three others on charges of "counterrevolutionary sabotage."

The trial of dissident Ren Wanding began Tuesday and recessed Wednesday afternoon, court officials said. They refused to answer other questions. No advance notice had been posted for the opening of his trial.

The outcome of the trials may not be known for weeks. On Saturday, China announced the first sentencing of key figures in the pro-democracy movement. Their trials started as early as late November.