A woman has been sexually assaulted by a man who broke into her house and threatened her at knifepoint.
The 20-year-old was in her bedroom at a home on Turana Parade, North Lambton, in Newcastle about 3.20pm yesterday when the man came into the room.
He was armed with a knife and threatened her. He then sexually assaulted her.
A short time later, the man fled on foot and the woman got help from other people in the house who contacted police.
Officers from Newcastle City Police District attended and established a crime scene.
Detectives have commenced an investigation under Strike Force Oorin, with assistance from the State Crime Command's Child Abuse and Sex Crimes Squad.
The man is described as being of Caucasian appearance, aged in his early to mid-20s, of a solid and athletic build, with a broad nose, short black hair and unshaven.
NSW Police are asking anyone with CCTV or dashcam footage from Turana Parade, Lester Parade, Faulkner Crescent, Sunset Boulevard and University Drive between 1pm and 5pm yesterday to come forward.
If you or someone you know is impacted by sexual assault, domestic or family violence, call 1800RESPECT on 1800 737 732 or visit 1800RESPECT.org.au.