SEATAC, Wash. -- The oldest of four kids and teens accused of using a pit bull as a weapon against two women last month has been charged.

On Monday the King County Prosecutor's Office charged the 16-year-old girl with second-degree assault, third-degree assault and minor in possession of liquor.

The charges are linked to the incidents that occurred June 21, when a 63-year-old woman saw four kids kicking a pit bull in the 13300 block of Des Moines Memorial Drive South.

Thinking the kids may be in trouble, the woman said she pulled over and asked if they were OK.

The oldest girl responded by saying, "Get out of here, (expletive), this is none of your business," the statement said. The teen then asked if the woman was a police officer, and the woman responded that she could call the police.

The girl then grabbed the woman, who was still wearing her seat belt, and yanked on her hair, detectives said. The girl then took the woman's cell phone and began beating her over the head with it until it "blew up," the document said.

When the woman tried to escape the attack by exiting through a different car door, the teen ran after her, grabbed her by the hair and began beating her all over the head, neck and torso in the middle of the road, according to the statement.

A man said he ran up to the group and said police were on their way as he had called 911. The document said the teen appeared unaffected and kept repeating, "(Expletive) it's my dog and I can kill it if I want, I can do what I want."

When the four teens began to walked away, a 41-year-old woman who saw what had happened told the oldest girl to stay so she can explain what had happened to police.

The teen then attacked the woman, knocking her to the ground before punching her in the head and face, the statement said.

Detectives said the dog joined in the fray, egged on by the teens, and became increasingly violent. It attacked the woman, and her left arm was wounded so deeply that her bone was exposed.

"I should have let my dog kill that (expletive)," the girl later told detectives.

King County deputies arrived and found the four kids and the dog near the scene.

Inside the girl's backpack deputies found two unopened bottles of Mad Dog 20/20, an alcoholic beverage.

Sgt. John Urquhart said the others in the group consisted of a 13-year-old boy, a 12-year-old boy and 11-year-old boy. They were all released to their parents.

The teen girl had injured her foot while kicking one of the victims, deputies said. She was released to her mother to receive proper medical treatment.

"Basically they were using this dog as a weapon," Urquhart said. "It's no different than a knife, gun or steel pipe."

The pit bull is being held by King County Animal Control.

The teen girl is scheduled to be arraigned on July 14.