A teenager was taken to Airedale Hospital on New Year's Eve suffering from stab wounds.
The 17-year-old had around half a dozen stab injuries to his side and back.
He sustained the wounds sometime between leaving an address in Simpson Street, Keighley, at about 11pm and arriving at a party in Cartmel Road half an hour later.
Police say it is still unclear what happened. Investigations are continuing.
The youth's injuries are not life threatening.
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