Bismarck Police say a 46-year-old Bismarck woman was arrested for sexually assaulting a 16-year-old girl.
It happened at the suspect's home on the 4000 block of Turnbow Lane.
Police say it was reported Tuesday, but happened sometime Sunday evening.
Police say when interviewed, the victim said the suspect engaged in sexual contact with her.
The suspect is in custody and waiting on formal charges.