A passenger who boarded a ferry in Seattle is missing, and the State Patrol is asking for the public's help in finding her.

State Patrol spokesman Sgt. Trent Cain said the 45-year-old Bellevue woman, Lynn Stafford-Yilmaz, bought a ticket in Seattle for the 10:55 p.m. Tuesday sailing to Bainbridge Island.

When it arrived, her van was abandoned. Cain said ferry workers found her purse and keys on an upper deck.

Ferry passengers sometimes walk off, forgetting they drove, but it's unusual to also leave keys.

Coast Guard spokesman Petty Officer Kelly Parker said a vessel and helicopter searched Puget Sound Tuesday night and Wednesday morning.

Stafford-Yilmaz is the mother of two and teaches English as a second language.

Click here for more on this story from Q13 FOX TV in Seattle.