LOS ANGELES (CBSLA.com) — A 25-year-old woman was killed Thursday and a second person was injured after their vehicles collided on the westbound 105 Freeway in South Los Angeles.

Around 2:15 a.m., a Ford Fusion struck a Toyota Prius that spun out of control on the freeway.

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The driver of the Prius was pronounced dead at the scene. Her identity is being withheld pending family notification.

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The second victim was hospitalized in unknown condition. He was arrested on suspicion of driving under the influence.

There were reports that a passenger who traveled in the Fusion fled from the scene, but authorities did not confirm those reports.

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CBS2’s Jennifer Kim reported traffic was backed up for miles after a SigAlert was cleared around 6:00 a.m.