The San Francisco Immigration and Customs Enforcement headquarters shut down on Tuesday afternoon, after about 30 protesters attempted to block the transfer of at least two immigrants who had been arrested in Concord that morning.
Just before 3 p.m., ICE agents and federal police stood inside the building’s doors putting up “Closed” signs. Protesters had amassed around the northern gate of the headquarters at 630 Sansome St. at 1:58 p.m. as an escorted, unmarked, tinted white van reversed through the building’s rising garage door.
Advocates said the van was loading immigrants arrested in Concord into holding cells inside…