A white American woman who called the police after a black man asked her to put her dog on a leash in New York City has been suspended from her job with an investment firm.

The man, described as an "avid birder", was concerned the dog could endanger wildlife in Central Park.

"I'm going to tell them [police] there's an African-American man threatening my life," she told him.

A video of the incident posted on social media went viral on Monday.

The woman, identified as Amy Cooper, later apologised, saying she had "overreacted".

Ms Cooper also returned her dog to a rescue centre after allegations of cruelty as she appeared to choke the animal while calling the police.

Oh, when Karens take a walk with their dogs off leash in the famous Bramble in NY’s Central Park, where it is clearly posted on signs that dogs MUST be leashed at all times, and someone like my brother (an avid birder) politely asks her to put her dog on the leash. pic.twitter.com/3YnzuATsDm

— Melody Cooper (@melodyMcooper) May 25, 2020

A white American woman who called the police after a black man asked her to put her dog on a leash in New York City has been suspended from her job with an investment firm.

The man, described as an "avid birder", was concerned the dog could endanger wildlife in Central Park.

"I'm going to tell them [police] there's an African-American man threatening my life," she told him.

A video of the incident posted on social media went viral on Monday.

The woman, identified as Amy Cooper, later apologised, saying she had "overreacted".

Ms Cooper also returned her dog to a rescue centre after allegations of cruelty as she appeared to choke the animal while calling the police.

Media captionWhat Americans get wrong about 911

The video shows Ms Cooper calling the police, saying to Mr Cooper "I'm going to tell them there's an African-American man threatening my life."

The video, which was also posted on Twitter by Mr Cooper's sister, has been widely condemned on social media as many point out the high number of killings of black men by police in the US.

Others referred to the high-profile fatal shooting of Ahmaud Arbery, a 25-year-old black man who was out jogging when he was killed by two men in February. 

Ms Cooper's employer Franklin Templeton, an investment firm, has suspended her while it investigates the incident, saying on Twitter that "we do not condone racism of any kind."

New York Police Department said no complaints or arrests were made, according to broadcaster NBC.

"We live in an age of Ahmaud Arbery, where black men are gunned down because of assumptions people make about black men, black people, and I'm just not going to participate in that," Mr Cooper told NBC.

Ms Cooper told the outlet, "I sincerely and humbly apologize to everyone, especially to that man, his family."

The incident made her realise that not everyone has the "luxury" of thinking of the police as a "protection agency," she added.

She also returned her dog to the Abandoned Angels Cocker Spaniel Rescue, where she adopted it a few years ago, after allegations that she choked the dog while calling the police.

"The dog is now in our rescue's care and he is safe and in good health," the organisation wrote on Facebook.