THREE US cops have been sacked after dash-cam footage caught them saying they hoped that the Black Lives Matter (BLM) protests trigger a race war so they could “slaughter” black people.

Kevin Piner, James Gilmore and Jessie Moore were fired from the Wilmington Police Department (WPD) in North Carolina on Wednesday following an internal probe.

A report seen by the Morning Star said they were caught after a monthly audit of dash-cam footage exposed the trio encouraging racial violence, including the execution of a black magistrate who Mr Moore said deserved “a bullet in her head.”

The sickening discovery was made soon after the killing of George Floyd, who died when Minnesota police officer Derek Chauvin knelt on his neck for more than eight minutes while he pleaded for his life.

Mr Floyd’s death sparked huge protests in the US and many other countries expressing anger over structural racism and discrimination.

The footage caught officers hitting out at the WPD for “kneeling down with the black folks” and calling one of the force’s black officers, Michael Scott, “bad news” and “a piece of shit.”

Mr Piner is heard saying: “Let’s see how his boys take care of him when shit gets rough, see if they don’t put a bullet in his head.”

In a later phone conversation Mr Moore is heard describing a woman he arrested the previous day as “n****r” and “negro.”

In one of the most shocking remarks aimed at the magistrate, he described her as a “fucking negro magistrate,” saying that she needed “a bullet in her head right then and move on. Let’s move the body out of the way and keep going.”

Mr Piner replied: “That’s what I’ve been trying to tell you.”

Later in the conversation Mr Piner tells Mr Moore that he is ready for a civil war and is buying himself a new assault rifle in preparation.

“We are just gonna go out and start slaughtering them fucking n****rs. I can’t wait. God I can’t wait,” he said.

Shortly before the end of the recording Mr Piner said that a race war was needed “to wipe them off the fucking map.”

“That’ll set them back five or six generations,” he said.

In interviews all of the men confirmed the recordings were of their voices and did not deny making the remarks. The trio denied they were racist and said the stress of the current climate for police officers was the reason for their “venting.”