At a news conference, NAACP leaders said the officers "roughed up" Jalena Vaughn, 19, and her friend, Jessica Brunson, during an arrest that was captured on the gas station's security camera.

The incident began when the women said they were harassed by five young men at a gas station on Roxbury Street at 16th Avenue Southwest. Surveillance video showed one man jumping on the hood of their car.

The men fled before police arrived at about 2 a.m.

The women said they were upset when police arrived, and were victimized again by officers.

“She is hysterical. She is screaming and crying. I am trying to calm her down so the officer can understand one of us, at least,” said Vaughn, in an interview with KIRO 7 Eyewitness News. “I'm hysterical. Why were we being set down on this bumper and why are we being treated like this?”

The women said they were the victims and the officers crossed the line.

“They threw me in the back with no cuffs on,” said Brunson.

“I’m on the ground being dragged around with cuffs on,” Vaughn said.

“What justice was there? There was no justice made,” said Brunson. “They didn’t help protect me. They didn’t do anything but harass me and hurt me. I was put in jail with hardcore criminals.”

According to the Seattle Police Department, when officers pulled into the gas station, they saw only the two women and thought they were assaulting each other.

Brunson was put in the back of a patrol car while Vaughn was taken down by an officer.

According to a Seattle police report, the two women appeared to be assaulting each other when police arrived and looked to be "highly intoxicated," so officers controlled the situation as much as they could.

"I believe it's possible maybe there'd been a drink, maybe been two drinks, but there's no representation whatsoever that they were intoxicated," said James Bible of the Seattle-King County NAACP.

According to authorities, “Vaughn spun around and struck (the officer) in the face with her hand and keys and she continued to yell and attempt wrestle away from the officer,” which led to the arrest.

The Seattle Police Department issued a statement on Friday, saying it began an investigation of the incident after a complaint was filed with the department's Office of Professional Accountability.

"The allegations contained in that complaint, and all relevant evidence will be thoroughly and objectively analyzed," the statement said. "The Department will base any decision upon a comprehensive review of the evidence, consistent with the principles of due process that apply to all citizens."