St. Louis, MO (KSDK) -- An argument led to the assault of a MetroLink security guard on Tuesday, a spokesman for Metro says.
A man and woman were arguing on the platform at the Delmar MetroLink station when the guard intervened.
The spokesman says amid the scuffle, the guard either fell off or was shoved off the platform.
The guard's injuries are relatively minor. He sustained a cut to the leg and was treated at the scene.
The male suspect was arrested on suspicion of assault.