Police in Larne are warning of the dangers of using laser pens after one of the devices was directed at a police helicopter on Saturday.
The incident, which occurred at approximately 10.30pm, involved a laser-type pen being shone at a police helicopter from the Sallagh Park Central area.
Police subsequently spoke to the occupants of a house in the area regarding the incident.
A 19-year-old male was arrested on suspicion of possession of cannabis. Enquiries are continuing.
Area commander, Chief Inspector Stephen McCauley said: “Not only is it an offence under the Air Navigation Order to endanger aircraft, but it is highly irresponsible and dangerous.
“Lasers can cause temporary blindness and where pilots are concerned, this could result in a catastrophe and possibly lead to significant loss of life.
“Those involved in this type of activity need to be mindful of the impact which their behaviour could have.
“If life is lost as a result of this behaviour, those involved could not only face charges of being in possession of a dangerous weapon, but could also end up facing manslaughter charges.
“It is easy to say retrospectively, ‘I never intended for that to happen’, but when you are aware of the risks and wilfully use these devices, you must be prepared to face the consequences.”