What is interesting is the number of Communist groups and communist groups lightly bearded like Civil Service Unions have really increased their presence at these marches. The suspicion is that Iran stopped funding them once their focus changed to defending the regime against US-Israeli attacks. But communist groups picked up some of the slack.
The article is at RAIR Foundation and has a lot of info. One thing not on film here, is the now routine arse lifting by the Muslims in front of Parliament Hil, blocking Wellington St. between the Centre Block and whatever mysterious construction is taking place below the street. But it happened. There is video of some woman being arrested, apparently for objecting to it.
Below a video of the arrest of someone alleged to object to the Street prayers. NO better video exists of the actual prayers that I can find, but you get a hint of it at the start of the one below.