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There have been violent clashes on the streets of the Iranian capital Tehran, after a massive opposition rally in the city.
One protester was shot dead and several others were injured when the crowd attacked a compound used by a religious militia linked to the country's powerful Revolutionary Guard.
The violence comes after a largely peaceful rally in the city, attended by hundreds of thousands of opposition supporters demanding the country's presidential election be overturned.

The rally was addressed by President Mahmoud Ahmadinejad's defeated rival, Mir Hossein Mousavi, who claims the presidential vote was rigged.
It is not known if the protester's death was the catalyst for the violence.
The rally itself was a remarkable event for Tehran, where public gatherings not approved by the government are banned.
The country's supreme leader, Ayatollah Ali Khamenei, has promised a review of the election result.
Western nations, including the United States, have expressed their doubts about the vote.
Overnight United Nations secretary-general Ban Ki-moon voiced his concern about the election result.
"When there is an election, the genuine will of the people should be reflected and respected in the most transparent and fair and objective manner," he said.
Meanwhile, US President Barack Obama says he is "deeply troubled" by the post-election violence in Iran.
"The democratic process, free speech, the ability of people to peacefully dissent - all those are universal values and need to be respected," he said.