A woman was assaulted in York in the early hours of this morning (Monday).
Detectives have now arrested a teenage girl and two adults in connection with their inquiries.
Police attended reports of a disturbance on Clifford Street at around 2am.
A woman in her 20s was treated for injuries that are not believed to be serious.
Officers arrested a woman in her 30s, a man in his 20s and a 17-year-old girl on suspicion of assault.
They have been released under investigation pending further enquiries.