The altercation began when the Uber driver gestured to a detective in an unmarked car to use his blinker, after he was allegedly attempting to park without using it, according to Sanjay Seth, a passenger in the car who uploaded the video to YouTube on Monday.
The video shows the unnamed detective, assigned to the FBI's Joint Terrorism Task Force with top secret security clearance, yelling at the driver of the taxi and mocking his accent.
After the detective steps back to his car, the Uber driver, who moved to America less than two years ago, turns to Seth and thanks him for recording the video.
"That's crazy. That's really inappropriate," Seth is heard telling the driver.
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Seth said he will testify at the Civilian Complaint Review Board.
When the detective comes back, he is irate and doesn't allow the driver to speak.
"I don't care what you have to say, people are allowed to park their cars on the side of the street without your interference," the detective tells the driver. "I don't know where you're coming from, where you think it's appropriate in doing that. That's the way it works."
Reacting to the incident, the New York Police Department yesterday said the incident is being investigated by the Internal Affairs Bureau.
"The behaviour in the video is wrong and unacceptable and we appreciate the NYPD investigating the incident. We are in touch with our driver-partner who was subjected to this terrible experience and will continue to provide any support he needs," Uber said.