A woman in her 40s was threatened by a man with a knife as she walked her dog in Burnley.
Detectives believe there may have been a sexual motive for the attack which happened around 1pm yesterday as the victim walked along Ighten Road in Ightenhill. She was approached by a man who threatened her with knife.
The woman grabbed her phone and threatened to ring police at which point the man made off into the park.
The man is white, aged 17-18 years old, and around 5ft. 9in. tall. He is of medium build with short dark hair, a round face and was wearing a black hooded top.
Det. Insp. Marie Haworth, from Burnley CID, said: “We believe the victim was followed and I would appeal to anybody that thinks they have seen this man or with any information that could assist with our investigation to come forward.
“The woman has been left very upset and shaken and the motive for this incident is unclear, although we believe it may be sexual.
“An investigation is under way and officers are carrying out CCTV and house to house inquires in the area. Patrols have also been increased to provide reassurance to local residents.
“I’d urge people to be vigilant and to report anybody acting suspiciously to police on 101.”
People with information can also contact Crimestoppers anonymously on 0800 555 111 or on-line at Crimestoppers-uk.org.