Video from SkyEye showed the officer's cruiser flipped upside down. A black car had severe front-end damage.
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According to a sergeant who spoke to ABC13's Brhe Berry at the scene, the officer was heading northbound after he clocked a car speeding and had planned to stop that driver.
Meanwhile, traffic heading westbound had the green light.
Police say the HPD unit had its lights on and the sirens were activated when the officer was hit by a driver, causing his cruiser to flip.
The officer is doing OK and may have a knee injury, but was conscious when taken to the hospital.
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The other driver was not hurt and was able to walk away from the scene after cooperating with police.
Officials at the scene said that based on preliminary information, they don't expect the driver to be charged.
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