CHICAGO (CBS) — A man made a bomb threat during a traffic stop Wednesday morning in the Ashburn neighborhood, but police determined his threat was a hoax.

Police said it started as a traffic stop in the 7700 block of South Kedzie Avenue around 9:15 a.m. The man tried to drive off, and crashed his car at a gas station.

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After crashing the car, he claimed to have a bomb in his car, and warned police not to approach.

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Police closed the intersection of 77th and Kedzie while the bomb unit checked the car. The bomb uit determined there was no explosive device, and the driver, a 49-year-old man, was arrested.

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Charges were pending early Wednesday afternoon.