11:00 PST -- Waves of anti-war protesters made good on their promise to disrupt downtown San Francisco this morning, as they occupied intersections throughout the Financial District, South of Market and Civic Center, preventing buses and cars from navigating the streets.
Demonstrations began with sunrise and heated up rapidly after 7 a.m., as groups of protesters fanned out to locations they had selected over the previous several weeks.
By late morning, demonstrators were still moving from intersection to intersection, and large portions of Market Street, Van Ness Avenue and other thoroughfares were blocked off.
The roving protesters also stalled firefighters trying to respond to emergencies, fire officials said. Firefighters also assisted police in some cases by using bolt cutters on protesters who had locked their arms together in metal sleeves.
About 400 demontrators made an attempt late Thursday morning to close the Bay Bridge. But when 40 California Highway Patrol officers blocked their way at Fremont and Howard streets, they changed directions and headed up Mission toward Fourth.
The tie-ups started early: At 7:15 a.m., a band of six young men wearing orange vests and hard hats stolen from a construction crew furtively dashed onto the Eighth Street off-ramp from Highway 101, put down orange cones, flares and men-at-work signs, then ran off.