A video has surfaced in Salisbury, North Carolina, reportedly showing police confronting people at a nightclub called La Bamba.
The video shows a young woman grabbed by her neck and pushed backward onto a table.
Another club patron approached the officer involved. The video shows the officer punching that patron in the face.
But a security manager at the club says the tape doesn't show the patron hitting the officer first.
Civil rights activist John C. Barnette met with Salisbury's mayor, police chief and the young woman about the alleged assault.
"We're not running with the race card," Barnette said. "This is an African American cop that we have issues with."
"I realized as soon as I saw it that it was something that would need to be investigated," said Susan Kluttz, Salisbury's mayor.
Barnette says the video is causing more people to come forward with complaints about police officers.
"It saddens me to know that I get emails every night about police harassment," Barnette said.
"I was disappointed to hear that," the mayor said, "Because I think people in this community have great respect for our police chief."
The SBI and the Salisbury police are investigating the alleged attack while the officer in the video, Kareem Purando, has been suspended with pay.