Detectives in Bradford are issuing a fresh appeal for information after a teenager was assaulted on Ilkley Moor.
The incident, which involved a 16-year-old girl walking her dog, occurred near to The Poetry Seat near to Backstone Beck at about 4.15pm on Monday, 17 March.
The victim suffered minor injuries which did not require hospital treatment and was left shaken by the incident.
The suspect, who was described as a white man aged between 30 and 60 years old, clean shaven and dressed in scruffy clothing, is reported to have ran off towards the Twelve Apostles Stone Circle.
Detectives have carried out numerous enquiries to identify the suspect and are now issuing a further appeal in the hope that more information will come to light.
Detective Inspector Rachel McKay of Bradford District CID, who has been leading this investigation, said:
“We have followed up all possible lines of enquiry into this offence and have now informed the victim that our investigation is closed pending further information.
“We are continuing to treat this as a serious offence and are liaising with the victim regarding any additional support she may need.
"If you were on the Moor at the time stated and witnessed any suspicious activity, then please contact us as you may have information which could lead to the positive identification of the man responsible.
“We have not received any further reports of similar incidents in the Ilkley area, but would ask that people remain vigilant and report any suspicious activity, with ongoing crimes or incidents where there is believed to be threat to life reported on 999.”
Anyone with information about this incident is asked to contact police via 101 or use the live chat options at www.westyorkshire.police.uk/livechat, quoting crime reference 13250151074.
Information can also be reported anonymously via Crimestoppers on 0800 555 111 or online.

Moorfield school invites all to Turner Prize inspired Art Exhibition
Silsden gardeners get ready for Open Gardens Weekend
Solstice runners raise £25,000 for Sue Ryder
Community goes quackers for Burley-in-Wharfedale Duck Race
Amber heat warning issued for West Yorkshire
Ilkley town centre offices could be converted into accommodation
Bin crews to start earlier this week due to the heat
Local food and drink delights at Ilkley Cycle Races
Extra funding expected to deal with potholes
Ilkley Pride celebrates 5 years of inclusion, creativity, and community spirit
Still time to sign up for Solstice Saunter on Sunday
Ilkley gym member crowned British National Powerlifting Champion
Leeds Bradford Airport to launch weekly flights to Santorini
Addingham Gala Festival set to be 'Out of this World'
Review: The 4th Waterman Piano Recital
Ilkley Firefighters unite with Mountain Rescue for Wharfedale Three Peaks
Fusion Chocolate in Ilkley celebrates another award win
Bradford Council waste services 'letting residents down'
Seddon and Davison in Ilkley to close next month
Ilkley suspect hid drugs stash in his underpants


