Last updated: 4 november, 2009 - 12:26 GMT
Anniversary clashes in Tehran
Thousands of people turned out for the official anti-American rally
State-run television in Iran says the security forces have broken up a demonstration by opposition supporters in Tehran, and arrested a number of people.
The demonstration was taking place at the same time as an official rally to mark the 30th anniversary of the seizure of the US embassy during the Islamic Revolution.
Eyewitnesses say the police used tear gas and batons on the opposition supporters and that one of the defeated candidates in June's disputed presidential election, Mehdi Karroubi, was there.
This man, who wants to be known by the name of Akbar, spoke to the BBC from outside the old American embassy building where the official protest is taking place.
To play this content JavaScript must be turned on and the latest Flash player installed.
Dr Mehrdad Khonsari is a senior consultant at the Centre for Arab and Iranian Studies in London.
To play this content JavaScript must be turned on and the latest Flash player installed.
First broadcast 4 November 2009
related bbc links
Related internet links
~RS~a~RS~worldservice~RS~q~RS~~RS~z~RS~26~RS~){kind=small}
bbc.co.uk navigation
BBC links
BBC © 2012 The BBC is not responsible for the content of external sites. Read more.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.