Last night’s disorder in Coleraine lasted three hours and involved 40 people, many of whom were masked teenagers.
Petrol bombs and masonry was used to attack officers.
The disorder started at around 7:45pm in the Atlantic Road area of the town.
A crowd had gathered and attempted to block the road by setting fire to pallets.
When officers responded, two petrol bombs were thrown at them.
A further five petrol bombs were thrown when further crews arrived. Some police vehicles were damaged.
Officers had dispersed the crowd and restored order to the area just before 11pm.
North Area Commander, Chief Superintendent Davy Beck said: “The senseless disorder we saw unfold in a residential area in Coleraine has achieved nothing but leave people petrified in their homes. Such reckless criminal activity has only served to harm the local community by those who deliberately chose to engage in such disorder.
“Thankfully, none of our officers were injured as a result of the attacks, however, some of our vehicles did sustain damage, and that damage is currently being assessed.”
And he is appealing to parents to be aware of what their children are doing.
“I want to make a direct appeal to parents, guardians and community leaders to use their influence to ensure we do not see a repeat of such ugly scenes. This is not wanted by anyone and does not represent the local community who we know just want to live in peace.
“I want to reassure the community that we will continue to work to keep people safe and those who engaged in last night’s disorder should be warned that an investigation is underway and evidence gathered will now be reviewed and those identified will face the full rigour of the law,” he added.