Black Lives Matter protesters clashed with a pro-Trump resident in Lancaster, Pennsylvania, on Monday night (September 14) following the police shooting of a person of color.

Footage shows the man, who described himself as a patriot, carrying the American flag while arguing with angry BLM protesters. He appeared to have gatecrashed their demonstration while proclaiming in the video that "all lives matter."

The BLM movement erupted in Lancaster following the death of Ricardo Munoz, 27, who ran at an officer while holding a kitchen knife above his head on Sunday, September 13.

Black Lives Matter protesters clashed with a pro-Trump resident in Lancaster, Pennsylvania, on Monday night (September 14) following the police shooting of a person of colour.

Footage shows the man, who described himself as a patriot, carrying the American flag while arguing with angry BLM protesters. He appeared to have gatecrashed their demonstration while proclaiming in the video that 'all lives matter'.

The BLM movement erupted in Lancaster following the death of Ricardo Munoz, 27, who ran at an officer while holding a kitchen knife above his head on Sunday (September 13).

Violence, rioting and looting have spread throughout the U.S. following the death of George Floyd in Minneapolis, Minnesota, on May 25.

Similar unrest followed in Kenosha, Wisconsin, after the shooting of Jacob Black and in Rochester, New York, where Daniel Prude died following a controversial spit-hood arrest.