An 18-year-old woman has been assaulted in the toilets of a pub in Cleethorpes.
The assault at the Bootlegger pub on High Street happened between midnight and 12.25am on Saturday, November 26.
The victim was having a drink and went to the toilet where she was assaulted by another woman, known to her.
A 35-year-old woman was arrested by Humberside Police and released on conditional bail.
Officers are now seeking independent witnesses to the assault.
Anyone with information should call 101, quoting crime reference number 2231450 of November 26.
Alternatively, contact the independent charity Crimestoppers anonymously on 0800 555 111.