Omaha police have arrested a man for sexual assault after a woman was attacked in her own home.

Officers were called to a residence near 36th & Laurel Ave Wednesday afternoon. The woman told officers a man knocked on her door and asked to use her telephone.

Police said once the man was inside, he threatened the woman with a handgun and sexually assaulted her. The man left the scene in a white vehicle. The victim described her attacker as having a scar on his left cheek from his ear to his jaw.

Omaha Police Special Victims Unit was able to locate and arrest 20-year-old Ariath Mareng. He’s facing charges of sexual assault and gun use in a felony.