Authorities say it happened just after 12:15p.m. near Estuary Park.
Police say they found two victims with gunshot wound(s).
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They were transported to a local hospital.
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The victims' conditions are unknown.
Police are searching for the suspects who were seen in a gray four-door Honda with a missing bumper.
Anyone with information is asked to contact the OPD's Felony Assault Section at (510) 238-3426.