Hours after protesters blocked traffic on I-880 in Oakland, Calif., the Los Angeles Police Department declared a citywide tactical alert as protests over the George Zimmerman verdict spread. WNBC reported that a Walmart store was closed after a “mostly peaceful” mob stormed the retailer.

Um, OK.

The mayor’s office called for peace in the area.

Nearby, another American flag went up in flames as violence spread through the area.

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The LA County Sheriff’s Office is urging parents to summon their children home.