Thousands of demonstrators chanted “down with the dictator” and “Allaho Akbar (God is Great)” slogans in Tehran on Thursday defying a government warning against protests about the disputed June 12 presidential election results.

The demonstration also commemorated the 10th anniversary of the student revolt against the the Islamic Republic where at least one person was killed and several were injured and arrested.

Iranian citizens once more provided the world with videos and photos, such as one above.

In this video, people in Tehran are chanting “Alaho Akbar“.

Here, people chanted slogans against Ayathollah Ali Khamenei‘s son Mojtaba Khamanei. According to some reports, he has been controlling paramilitary Basij forces that have struck down hard on protesters in recent weeks.

And here, one protestor chants the Iranian opposition leader, Mir Hussein Mousavi's name.

Blogger Akharozaman writes that security forces fired tear gas in a bus in Vali Asar street.

Several bloggers such The god that failed criticized [fa] BBC Persian TV for failing to cover the demonstration in Tehran.

My.Opera says [fa] that BBC and other mainstream media cannot help the Iranian protest movement because they look with one eye at Iranian protesters, and with the other on the promises of the Iranian stateD