They said Nami Hamifar, the sister of a student, was killed during clashes between security forces and protesters at Tehran University.

They added that members of the Student Representatives Council were among those arrested during Wednesday's massive government-sponsored rally which marked the end of the student protests in the capital.

Six days of violence rocked Tehran after a student demonstration last week over the closing of a popular pro-reform newspaper erupted into bloody clashes between protesters and security forces.

Iranian officials said one person died and three others were wounded in the Tehran violence, a figuresharply at odds with newspaper accounts.