CHICAGO (CBS) — The eastbound lanes of the Chicago Skyway were shut down for nearly six hours Wednesday morning, after a man shot and killed a woman, and then took his own life, police said.

Chicago police said a car was headed east on the Skyway near the toll plaza at 88th Street shortly after 4 a.m., when 49-year-old Lisa Fischer jumped out and began running away.

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Christopher M. Pena, 30, got out of the car while it was still moving, and fired several shots at Fischer, striking her in the body. The car then crashed into a median separating the eastbound lanes from the westbound lanes, police said.

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A responding police officer saw Pena running back toward the vehicle, and when the officer told him to stop, Pena pulled out a handgun and shot himself in the head.

Police said both victims were pronounced dead at the scene.

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The eastbound lanes of the Skyway were shut down for nearly six hours as police investigated. The lanes reopened around 10 a.m.