A 43-year-old Sioux Falls woman is in custody Monday, accused of beating her kids with a hanger.
Police say a school counselor noticed marks on a 12-year-old and two 13-year-old students.
The school resource officer was then notified.
An investigation revealed the mother was upset with her kids for not picking up and allegedly beat the teens with a hanger.
"State law gives parents the ability to discipline their children. If it gets to the point where you're leaving marks and bruises it's probably crossed that line," Sioux Falls Police Officer Sam Clemens said.
The mother is facing charges of abuse or cruelty to a minor.
She is currently in the Minnehaha County jail without bond.