MIDDLE RIVER, Md. (WJZ) — A major stretch of road was closed in both directions for hours following a double fatal car accident in Middle River.

The crash happened along Route 40 near Martin Boulevard Sunday morning. Police say it was a single vehicle accident involving a Ford Mustang.

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The accident killed two people, a man and a woman. Two other people, the driver and a passenger, have been taken to the hospital.

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Their names have not been released.

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The accident is under investigation. Officials say speed may have been a factor.