Eun Sil's white Toyota Prius crashed off a 100-foot cliff. The cause of the crash is under investigation.
She had been reported missing by her boyfriend earlier in the week.
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The boyfriend was in Hawaii and is cutting his vacation short to return to the Bay Area.
E7, T5, B2, R1, R2, E29, PMP, and OPD on scene at #GrizzlyPeak for a vehicle down an embankment. No occupants found. OFD resources, including one of our highly trained search canine teams is conducting a wide area search of the area to ensure no victims were ejected. #oakland pic.twitter.com/K0YPehqrk3— Oakland Firefighters (@OaklandFireLive) April 6, 2018