Police in Delaware are reviewing a video that shows an officer pulling a gun on a black driver during a traffic stop, a state police spokesman told NBC News.

The driver, Mack Buckley, shared video on Facebook last week that shows an officer opening the car door, pointing a gun at Buckley and trying to get him to step out of the car.

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Buckley can be heard asking several times during the video why the officer pulled a gun on him.

The officer responded, "Stop reaching for shit. Hands on the car."

Police declined to comment on the video to NBC News but said authorities are reviewing it.

"The Delaware State Police is aware of the video and it is currently under review. I will update you further as information becomes available," Delaware State Police spokesman Sgt. Richard Bratz told NBC News. 

Buckley wrote in his Facebook post that he was originally pulled over for allegedly speeding, but did not get a speeding ticket. Instead, he wrote, he was ticketed for resisting arrest and issued three traffic offenses.

He also said the officer repeatedly referred to "you people" on the way to the station.

"On the way to the troop he kept referring to YOU PEOPLE. I asked him who was YOU PEOPLE since there was only him and I in the vehicle. Then he proceeded to say I was a worthless piece of shit," Buckley wrote.

Buckley said that when he asked the officer what he meant by "you people," the officer responded "society," adding, "Go ahead and play the race card."