A woman was hit by a vehicle Tuesday afternoon in the K Street corridor at the height of the homebound rush hour, and her condition appeared to be extremely serious.

The woman was struck about 5:40 p.m. at 18th and K Streets, said Officer Paul Metcalf, a police spokesman.

She was unconscious, and did not appear to be breathing when she was taken to a hospital, Metcalf said.

The incident remained under investigation late into the evening, and traffic was rerouted around the busy intersection. Motorists were advised to expect delays.

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