OHIO TOWNSHIP, Pa. -- Pittsburgh Steelers linebacker James Harrison was charged with simple assault and criminal mischief on Saturday after an altercation with his girlfriend.

According to an affidavit, just before 1 p.m. on Saturday, Ohio Township police officers were dispatched to a domestic call.

While on the way to the house, the caller stated that the man left the scene in a gray Hummer.

When officers arrived, the woman stated that her boyfriend and she had an argument and she locked herself in the bedroom.

While in the room, she attempted to call 911, when police say James Harrison broke through the door, took her cell phone and broke it in half.

The woman then stated that Harrison slapped her in the face with an open hand and knocked off her glasses.

The woman had red marks on her left cheek, according to police.

Police located James Harrison, and they said that during an interview with him, he told police he broke through the door and slapped the woman.

Police then arrested Harrison and took him to the Allegheny County Jail.

He was released on his own recognizance.

The Pittsburgh Steelers told Channel 11 that they heard about the incident and are looking into it as a personnel matter.