Last updated: 20 june, 2009 - 19:30 GMT

Riot police disperse protests

Supporters of opposition leader Mir Hossien Mousavi set fire to a barricade as they hurl stones at riot police during a protest in Tehran on Saturday June, 20, 2009

Opposition supporters clash with riot police in Tehran, 20 June 2009

Iranian police have used water cannon, batons, tear gas and live rounds to break up protests, according to witnesses in Tehran.

Supporters of opposition leader Mir Hossien Mousavi run from tear gas fired by riot police during a protest in Tehran on Saturday June, 20, 2009

There were fewer protesters on the streets than on previous days

The demonstrators had defied a ban by the supreme leader Ayatollah Khamenei to protest about the disputed presidential election.

Thousands of police officers blocked off Enghelab Square near Tehran University.

The protesters had gathered in streets near the square, where they were chanting, throwing stones and setting rubbish bins alight.

The BBC's Julian Marshall presents the latest for Newshour.

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First broadcast 20 June 2009

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