MARYSVILLE, Wash. - A flower delivery van went out of control and slammed into three pedestrians outside a fast-food restaurant Wednesday afternoon in Marysville.

Police said the City Floral van was making its way through the drive-through when it suddenly jumped the curb striking three young people - an 18-year-old woman and two men aged 19 and 22 - who were waiting at a bus stop.

The woman was pinned under the vehicle. Several men lifted the van up and someone pulled out the woman, who suffered serious leg and head injuries.

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The woman was airlifted to Seattle's Harborview Medical Center and the two men were transported with non-life-threatening injuries to a local hospital.

Marysville Police said the van was in the Dairy Queen drive-through at 4th and State Street when the 68-year-old driver's accelerator got stuck.

Video from the scene showed two people strapped to backboards and loaded into ambulances.

The van belongs to Everett-based City Florist.