An Orem woman was arrested Thursday after allegedly assaulting her ex-husband in front of the Provo police station.

According to police reports, 26-year-old Angela Callaway and her husband are currently in a custody battle over their daughter. When Callaway saw her ex-husband in Springville, she followed him to Provo, where he stopped in front of the police station.

As the man got out of his car, police say Callaway hit him with her minivan, pinning him against a patrol car. She then began hitting him with a binder until she realized her weapon would not have the desired effect. According to reports, Callaway returned to her van and retrieved a tire iron and proceeded to beat the man.

Witnesses and police intervened and stopped the assault, after which Callaway admitted to using Xanax and methamphetamine within the last 36 hours.

Field sobriety tests indicated methamphetamine intoxication, and a physical search revealed Callaway also had a concealed switchblade in her possession.

Callaway was booked into the Utah County Jail on charges of aggravated assault and possession of a dangerous concealed weapon by a restricted person.