Officers were called out to reports of a mass disturbance involving around 30 people on a Sheffield street in the early hours of yesterday morning.
Police received reports of the disturbance in Ellerton Road, Firth Park at around 12.50am yesterday morning.
A South Yorkshire Police spokesman said no-one had been arrested in connection with the incident.
Officers in three police cars attended the disturbance.
Residents in the area claim windows were smashed during the incident.
An eyewitness said: "Groups were charging at each other, people were screaming."
More to follow.