Update, 8:16 a.m. (from Gregg): Opposition Web sites are reporting (فارسی) a massive security presence in the streets: rows of riot police, some seven or eight deep, lining the streets along the route of the pro-government rally. Opposition groups are trying to organize rallies, but it sounds like (so far) they haven't been able to gather en masse.
RAHANA, an Iranian activist site, is reporting dozens of arrests in Sadeghieh Square and other locations throughout Tehran. Sadeghieh Square is about one kilometer from Azadi Square, where the pro-government demonstrators assembled.





