ST. LOUIS (AP) – A Ferguson woman has been charged in the attack of a security guard at a train station in St. Louis.

The St. Louis Post-Dispatch (http://bit.ly/296eJ7o ) reports that 22-year-old Ronisha Pampkin is charged with third-degree assault. Police say she attacked a security guard who was checking tickets at the North Hanley MetroLink platform around 7 a.m. Monday.

A bystander filmed the attack and posted it on social media. St. Louis County police officers arrested Pampkin Tuesday after identifying her in the video.