A teenager has been arrested after a laser was aimed at a police helicopter.
The incident took place in Londonderry at 11.35pm on Saturday.
The laser was said to have been directed at the helicopter by a group of youths in the area of Rossville Street.
Police stopped a car nearby a short time later.
A male in his mid-teens was arrested and released pending a report to the Public Prosecution Service.
Police appealed for anyone with information on the incident to come forward.