Thursday, July 15, 1999 Published at 08:58 GMT 09:58 UK
World: Middle East
Analysis: Student power in Iran
Iranian students have become powerful backers of reform
By BBC News Online's Martin Asser
They come after months of intensifying struggle between Mr Khatami's reform movement and the old guard of religious hard-liners.
The students who took to the streets this week have broadened their original demands for the lifting of a ban on a pro-Khatami newspaper and protection of press freedom.
Now they are calling for more wide-ranging reforms, presenting an even more radical challenge to the conservative establishment than the president.
Soul of the revolution
With crucial parliamentary elections due in the spring next year, conservatives and reformers are fighting an increasingly bitter battle for the soul of the Iranian revolution.
In recent months, the hard-liners have targeted press reforms under which an increasingly outspoken free press has emerged.
The student unrest follows new parliamentary legislation to curb press freedom and the banning of a leading pro-Khatami newspaper, Salam.
Prominent pro-Khatami journalists, including the director of the country's official news agency Irna, Fereydoun Verdinejad, have also been arrested and charged by special courts.
Culture Minister Ataollah Mohajarani, who spearheaded Mr Khatami's press reforms, narrowly avoided impeachment by parliament for "corrupting Islamic values".
Away from the media, key Khatami ally Gholamhossein Karbaschi, Mayor of Tehran, was jailed for corruption charges despite a petition signed by nearly half the country's MPs calling for him to be pardoned.
The moderates, meanwhile, have their eyes on hard-line control of the powerful security and intelligence services.
Beatings and deaths
It was the harsh nature of the security operation against recent student demonstrations, with reports of beatings and even deaths, that has provoked thousands of students to come out onto the streets.
The protesters also say right-wing thugs acting on behalf of the anti-Khatami camp have been conducting attacks and provocations.
And in an unprecedented move, they have directly addressed Iran's supreme leader, Ayatollah Ali Khamenei, calling on him to take responsibility for the actions of the security men.
This radical campus mood appears to have caught Mr Khatami's government by surprise.
But, given the stifling atmosphere of revolutionary Iran before Mr Khatami's appearance, there was always the risk Iranian youth would insist on a faster pace of reform than the president himself was able to offer.