Opposition supporters in Iran took to the streets again on Monday to voice their anger at the re-election of president Mahmoud Ahmadinejad.
The defeated opposition candidates have filed formal complaints, alleging the vote was rigged.
Mr Ahmadinejad insists the election was fair, and has blamed foreign media for the unrest.
The BBC's Jon Leyne in Tehran got stuck in a traffic-jam which turned into a demonstration.
One-Minute World News 
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