UPDATE: A source reports that 30-40 arrests have been made, which suggests that 100-300 activists left when police arrived.
From the San Francisco Chronicle:
(10-25) 05:58 PDT OAKLAND — Oakland police arrested dozens of people at a plaza outside City Hall, two weeks after the protesters began building an intricate encampment as part of the Occupy Wall Street movement against corporate greed and economic inequality.
At about 4:57 a.m., officers began making arrests and removing tents and makeshift shelters at the Occupy Oakland protest at Frank Ogawa Plaza near 14th Street and Broadway. By 5:05 a.m., the bulk of the arrests had been completed, and arrestees were led away in plastic handcuffs.
Officials said protesters had plugged power cords into city utility poles and had denied access to emergency responders who needed to get into the plaza. The city was also alarmed by the activists’ decision to try to police themselves with a volunteer security team.
Protesters had vowed to resist eviction and protect an encampment of about 150 tents, where pathways made of wooden pallets connected a kitchen, a garden, a medical station and an area for children to play.
For more than an hour before the police moved in, several hundred people appeared ready to defend the camp, placing Dumpsters, boards, pallets and even metal police-style barricades around the plaza as blockades.
After the mass arrests, protesters vowed to return.
Party’s over, kids.