Standoff in Iran?

PressTV, the Iranian state outlet, acknowledges that there was a "rally" today and characterizes violence as "sporadic":

Despite warnings by Iranian police, protesters have staged an illegal rally in Tehran to cry foul over what they call 'vote-rigging' in Iran's presidential election.

Police used batons and water canons to disperse the protesters who gathered near Tehran's Enqelab Square on Saturday.

Sporadic clashes were reported between security forces and the protesters.

While there appears to have been much disgusting Basij violence, it also seems that the government so far has held back from a full-scale Tiananmen crackdown. Videos seem to show that although protesters were kept from massing in major squares, they did manage to fill streets and stay out en masse.

Mousavi, meanwhile, called for a general strike in the event that he is arrested. The fact that he's had the opportunity to make that call indicates something of a standoff.