Nancy Armstrong & APTP just tweeted:
There is what looks like an empty lot (from Google images) on the corner of Edes and S. Elmhurst.
My understanding is that this is an action by Oakland homeless. Edes and Elmhurst is down by the Coliseum, near the Brookfield Branch of the Oakland Public library. Looks easy to get to via the 98th St. freeway exit. Looks like less than a mile from the Coliseum BART.
(Submitted by JP Massar.)