Detectives in Derry are investigating a serious sexually motivated attack in Drumahoe on Friday night.
A woman in her 20s was walking in Drumahoe Park at around 10pm when a man approached her from behind.
The man punched the woman to the side of the head, pulled her into nearby trees and pushed her to the ground at knifepoint.
The woman struggled with her attacker, managing to strike him in the face a number of times with her torch before she was able to break free and run for help.
Police immediately responded to the area and searched for the attacker, who had fled the scene.
Specialists are continuing to support the victim and a full investigation is underway.
Detectives investigating this attack are appealing to anyone who was in the park on Friday night and who saw anything that could assist the investigation to get in touch with them on 101.
