Protesters locked arms in PVC pipes Friday morning to prevent attendees from entering the Kaiser Center Auditorium on Lakeside Drive.
The group and several others are targeting developers they say are seeking profit from Oakland's housing crisis. They want Mayor Libby Schaaf to support a resolution to declare a housing state of emergency. The Oakland City Council is scheduled to consider that resolution on April 5.
PHOTOS: Chained protesters block westbound traffic on Bay Bridge