Six people were arrested for assault and disorderly behaviour in the Coleraine area on Tuesday evening.
A PSNI spokesman said: “At around 7:30pm, it was reported that a 36-year-old male and a 26-year-old female were arrested at the Pates Lane, Coleraine area for disorderly behaviour.
“Both are currently assisting police with their enquiries.”
Some hours later, at 10.40pm, it was reported to the PSNI that a number of males were involved in an assault in the Winston Way area.
The PSNI spokesman added: “Two males aged 17-years-old, an 18-year-old man and a 19-year-old man were arrested and are assisting police with their enquiries.”