American authorities have released footage which shows a fatal encounter between a black suspect and a white sheriff’s deputy in Oklahoma, USA.

The footage captured in Tulsa shows a County Deputy chase and tackle Eric Harris (44), who was accused of trying to sell an illegal gun to an undercover police officer.

After he is apprehended, a deputy can be heard telling Harris: "I need you to roll on your stomach."

A woman is then heard in the background saying “Stop fighting.”

Finally a gunshot rings out and the deputy can be heard saying: "Oh, I shot him. I'm sorry."

The police man has been identified at 73 year old Robert Bates who claims he mistook his gun for his taser.

The suspect then screams: "He shot me. Oh my God," and a deputy replies: "You f--ing ran. Shut the f-- up."

When Harris reveals he is struggling for breath a deputy replies "F-- your breath."

The suspect was treated by medics at the scene but later died in a Tulsa hospital.

The video, which was captured on April 7, was released at the request of Harris’ family.

It was recorded by deputies using sunglass cameras.

Tulsa Police Sqt Jim Clark said that the police deputy was in a very high stress environment which lead to the fatal mistake.

Results of the investigation were turned over to prosecutors, who will decide whether to file criminal charges.

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