McDonald’s worker yanked through drive-thru window, beaten

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ST. JOHN THE BAPTIST PARISH, La. -- Three teenaged girls and a woman have been arrested after a violent attack on a McDonald's drive-thru worker in Louisiana.  The attack was caught on camera.

WARNING: The video may be disturbing to some viewers. Viewer discretion advised. viewers.

Kailin Holland, 17, is accused of reaching into the drive-thru window, grabbing the hair of this worker and pulling her through the window.

The 16-year-old worker was then beaten by several women in the parking lot.

The video of the attack was posted online and went viral.

Two other teenagers are charged with simple battery and a 20-year-old woman is charged with disturbing the peace.

There's no word on the motive.