Two men have been arrested in Belfast after a laser beam was directed at a police helicopter last night.
The incident took place in the Dunmore area of north Belfast.
Both men were attested on suspicion of endangering the safety of an aircraft.
One man has been released pending a report to the Public Prosecution Service (PPS) and the other remains in police custody.
A PSNI spokesperson said that nobody was injured in this "extremely dangerous and reckless behaviour."
"Not only is it an offence under the Air Navigation Order to endanger aircraft but it is highly irresponsible and dangerous," the spokesperson said.
"Lasers can cause temporary blindness and where pilots are concerned, this could result in a catastrophe and possibly lead to loss of life.
Be mindful of the impact of such actions, and be prepared to face the consequences."