An 18-year-old woman is reported to have been grabbed by a stranger in the street on her way home.
The incident is said to have taken place between 2.45pm and 3.20pm on Wednesday 12 June in Hornsea Burton Road.
The man attempted to engage in conversation with the woman, who ignored him. As she carried on walking he is reported to have grabbed hold of her arm.
The woman then pulled away and the man went in the direction of Burton Way. No injury was caused to the woman.
The man has been described to police as a white male, around 5ft 10ins tall with black hair, between 25 to 28 years old.
Police are appealing for information on the incident - call 101 with crime reference number 1979905.