At least one person is dead after militia fired into a crowd of protesters in Tehran today.
An Associated Press photographer saw one person shot dead and several others who appear seriously wounded in Tehran's Azadi Square. The shooting came from a compound for volunteer militia linked to Iran's powerful Revolutionary Guard.
The gunfire Monday came after more than 100,000 opponents of President Mahmoud Ahmadinejad streamed through Tehran. They were not challenged by security forces despite an earlier ban on rallies for reformist leader Mir Hossein Mousavi.
Disputes over alleged vote rigging in last week's elections have touched off days of rioting in Tehran.