Live-Blogging The Revolution: 13 Aban

Saeed Valadbaygi at Revolutionary Road and Scott Lucas at Enduring America are both doing an incredible job keeping up with all the bits of info coming out of Iran. So are Matthew Weaver and Saeed Kamali Dehghan at The Guardian blog, a sample of which follows:

7.57am:
Unsurprisingly the state media is ignoring the opposition protests and focusing instead on the official anti-US rallies. Press TV claims: "Tens of thousands of people from all walks of life and many political persuasions have staged a rally at the site of the former US embassy in Tehran, better known in Iranian history as the 'den of spies'."

8.06am:
One of opposition leaders Mehdi Karoubi has been seen in Hafte Tir Square, according to ABC reporter Lara Setrakian, citing a colleague. Callers to the dissident Iranian radio station ePersian radio also report seeing Karoubi among the protesters, according to translations from blogger Homylafayette.

8.39am:
Police are wearing teargas masks for the first time, according to an email from a contact in Tehran. He also reports that the security forces are filming protesters and that most of the government buildings in central Tehran are closed.

9.04am:
Once again news of the protests in Tehran is spreading rapidly on Twitter as Trendsmap demonstrates.

9.39am:
Karoubi has been roughed up by "agitators," according to the reformist website Mowjcamp. His body guard helped him leave the scene, it says.

9.51am:
A friend of a usually reliable source of Twitter has been hit in the eye by a plastic bullet and has been take to hospital.

10.27am:
Security forces mainly paramilitary units from the Revolutionary Guard swept through an opposition march in central Tehran, clubbing some protesters and kicking and slapping others, according to Associated Press witnesses.

10.39am:
New video purports to show protesters dressing bleeding head wounds after clashes with the security forces.