Nashville police are investigating an altercation Saturday at the Corner Pub in Brentwood between a large group professing “white lives matter” and an interracial couple, hours after several white nationalist groups marched in Shelbyville, Tenn.

A 30-year-old white woman and a 37-year-old African American man were at a table when a group of 20-30 white men and women entered the bar and sat near the couple, according to a Metro Nashville Police news release.

A white woman in the large group asked the 30-year-old to “guess” to which she responded “white lives matter,”police said.

Another member of the group affirmed with “that’s right” and told the woman to join their group, leaving her boyfriend.

"The argument inside apparently escalated even after the female victim had gone outside to deescalate the situation," the police said in a release.

A white man in his 30s wearing a black jacket and black jeans punched the woman in the face, leaving a cut above her eye. Another white woman reportedly argued with her.

All parties left the bar by the time police arrived but the victim returned to file a police report. She refused medical treatment.

The woman in the couple told police there were several vehicles including a white van with Wisconsin tags and a sedan with a New York license plate.

Metro Police Captain Chris Taylor said police received multiple calls about several people fighting at the Corner Pub on Old Hickory Boulevard around 9:15 p.m.

The altercation was captured in a video posted on Facebook Saturday night. The video shows a group of several men wearing black clothing surrounding a man and a woman outside the Corner Pub on Old Hickory Boulevard in Brentwood.

The couple are shown pushing back and shouting as the group surrounds them.

The woman seems to have a wound to her face as she shouts at several members of the group. At one point one of the patrons inside the restaurant says "Oh my God, she's bleeding."

There is also a man wearing black shooting video of the incident. A video posted on Youtube also shows the altercation with a description that claims "no one on our side initiated violence and were acting in self-defense."

Members of several white nationalist groups were set to hold a White Lives Rally earlier Saturday in Shelbyville and Murfreesboro, with hundreds of counterprotesters responding in both cities.

More:White nationalists rally in Tennessee, but outnumbered by a community groundswell

The rally in Murfreesboro was ultimately canceled when League of the South, one of the event's main organizers failed to show up, according to the city of Murfreesboro.

Murfreesboro officials estimated between 800 to 1,000 people countered the white nationalist protest Saturday afternoon.

Police are asking for anyone with information about the suspect or person involved to call Crime Stoppers at 74-CRIME.