It happened just before 9:30pm Friday on Pasadena Boulevard near Strawberry.
Pasadena police said two pickup trucks were street racing, and both drivers lost control.
One of the drivers slammed into a utility pole, causing a power outage, officials. But the other pickup crashed into the side of a car as it turned onto Pasadena Blvd.
Police said the woman driving the car was trapped inside her vehicle for about 30 minutes. By the time firefighters were able to free her, it was too late. She was pronounced dead at the scene. Authorities later identified her as Maria Rodriguez.
No one else was seriously injured.
According to investigators, the drivers of both pickups could face multiple charges.
"We have to reconstruct the accident, you know? Try to reconstruct it and figure out what did happen, and then those decisions will be made with the district attorney," Pasadena police spokesperson Vance Mitchell said.
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