They're calling it the "Oakland to Baltimore" protest in support of Freddie Gray who died in Baltimore police custody.
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Some protesters shattered the windows of a downtown Wells Fargo Bank, which has been hit by similar vandalism multiple times in the past during protests.
Citibank also had their windows shattered out.
PHOTOS: Cars burned, windows smashed in Oakland protest
The protesters were marching towards the Oakland police headquarters and police in riot gear stopped them at 7th and Broadway. There was a standoff and protesters were yelling at police. Finally, they decided to turn around and walk the other way and that's when a lot of the windows started breaking out.
Multiple car dealerships have been damaged in Oakland.