22 Bahman Protests in Iran: Footage coming in

Today marks the 31st anniversary of the Iranian Revolution, and opposition leaders Mir Hossein Mousavi and Mehdi Karroubi have called for all pro-reform Iranians to join in a mass rally today in Tehran.

The videos have begun to stream into YouTube - a quick search for "22 Bahman Iran" on YouTube is already turning up 319 videos uploaded today.

Protesters appear to be facing off with the police in this clip:

Security forces can be seen standing by:

Pro-reform activitst stomp on a picture of Ayatollah Khomeini:

This video allegedly captures protesters chanting during President Ahmadinejad's speech:

Here's a playlist with some of the other videos that have come in:

Stay tuned for more updates.