The deaths of black men Alton Sterling and Philando Castile at the hands of police officers have prompted one officer to denounce her "racist" colleagues.
Black female police officer Nakia Jones used Facebook Live - the same video streaming service Mr Castile's girlfriend Diamond Reynolds used to broadcast the aftermath of his shooting - to call for racist police officers to leave the service.
“If you’re that officer that's no good and, well, you got a god complex, you’re afraid of people that don’t look like you, have no business in that uniform," she said.
"Take it off.
"If you’re afraid to go talk to an African American female or a male or a Mexican male or female ’cause they’re not white like you, take the uniform off.
"You have no business being a police officer. Because there’s many of us that will give our life for anybody and we took this oath and we meant it. If you are that officer that’s prejudiced, take the uniform off and put the KKK hoodie on."
Her video came the day after Mr Castile was shot in a routine traffic stop in Minnesota, and two days after police shot and killed Mr Sterling while he was selling CDs outside a Louisiana convenience store.
As her fury grows, Officer Jones, of Warrensville Heights Police, unleashes her rage and frustration at police officers who have shot often unarmed black men and boys with seemingly little provocation.
"How dare you stand next to me in the same uniform and murder somebody,” she said.
“How dare you. You oughta be ashamed of yourself.
"You stood up there and took an oath. If this is not where you want to work, then you need to take your behind somewhere else."
Officer Jones says her son showed her the video of the Louisiana police shooting of Mr Sterling, which she watched "over and over and over and over and over again, so that I wouldn’t become judgmental".
"It bothers me when I hear people say, ‘Y’all police officers this, y’all police officers that," she said.
"They put us in this negative category when I’m saying to myself, ‘I’m not that type of police officer.’
"I know officers that are like me, that would give their life for other people.
"So I’m looking at [the video], and it tore me up because I got to see what you all see. If I wasn’t a police officer and I wasn’t on the inside, I would be saying, ‘Look at this racist stuff. Look at this.’
"And it hurt me."
Officer Jones, who is originally from Cleveland, says in the video she became a police officer to make a difference and to protect and serve her community.
She says she chose to work in a predominantly black community to help put a stop to black-on-black violence and she calls for people to "put these guns down".
"The thing that hurt me most of all was a lot of people I was arresting were the same color as me, that grew up in East Cleveland like me," she said.
"Why would you want to destroy your community?
"Put these guns down because we’re killing each other.
"And the reason why all this racist stuff keeps going on is because we’re divided. We’re killing each other, not standing together."
Her video has been widely watched and shared on social media platforms like Facebook and Twitter, where her name became a nationally trending hashtag.
'This kind of racism exists'
In Minnesota, speaking the day after Mr Castile's death, Governor Mark Dayton acknowledged the racist undertones in the incident.
"Would this have happened if the driver and the passengers were white? I don’t think it would have," Mr Dayton told reporters.
"So I’m forced to confront that this kind of racism exists, and it's incumbent upon all of us to vow and ensure that it doesn't happen and doesn't continue to happen."
President Barack Obama spoke about the deaths of both men, both in a Facebook post and in a , and called attention to the "racial disparities that exist in our criminal justice system".
"All of us as Americans should be troubled by the shootings," he said.
"These are not isolated incidents. They’re symptomatic of a broader set of racial disparities that exist in our criminal justice system."
Obama said US citizens could question and be concerned about the shootings without being against law enforcement officers.
"To be concerned about these issues is not to be against law enforcement," he said.
"But I repeat, if communities are mistrustful of the police, that makes those law enforcement officers who are doing a great job, and are doing the right thing, it makes their lives harder.
"So, when people say 'black lives matter,' it doesn’t mean 'blue lives' don’t matter, it just means all lives matter.
"But right now, the big concern is the fact that data shows black folks are more vulnerable to these kinds of incidents.
"Doing better involves not just addressing potential bias in the criminal justice system, it’s recognising that too often we’re asking police to man the barricades in communities that have been forgotten by all of us for way too long.
"We’ve gotta tackle those things. We can do better. And I believe we will do better."