Bismarck police say a man broke into a north Bismarck house while two girls were home alone.
One of the girls called police after she saw the man in her kitchen.
She told police she heard someone pounding on the door while they were sleeping.
He fled through the patio door when she spotted him.
The homeowners say he did not take anything, but he knocked over two chairs.
Police say the man is between 20 and 40 years old.
He was wearing a black hooded sweatshirt.