A man was treated for serious head injuries in Derry today after clashes between rival gangs in the early hours of the morning.
Another man was also treated for less serious injuries following the clashes in the Irish Street area of the city.
Police were called to the area at around 3.25am as the rival gangs confronted each other.
Irish Street is in the Waterside area of Derry. The badly injured man is believed to be in a stable condition in Altnagelvin Hospital.