Officers and medics responded to the scene, in the 2200 block of 1st Avenue, at about 12:30 a.m. Saturday after receiving a report of an assault with weapons.
The woman was found in the back seat of a white SUV with stab wounds. She was rushed to Harborview Medical Center for treatment. Her condition was not immediately available.
So far, police have not identified a suspect.
This is a developing news story. More information will be posted as it becomes available.