Police are appealing to those shining laser pens towards aircrafts to desist, following four incidents in the space of a week.
The most recent took place on Friday night as an aircraft was in the Jordanstown area at round 10.55pm.
A PSNI spokesperson called the behaviour "extremely dangerous and reckless" and gave a stern warning to those responsible.
Inspector McCarron said: “This week, we have received four reports of individuals shining laser pens directly at pilots.
“Thankfully no one was injured or vision impaired.
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“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. Those involved could face charges of being in possession of a dangerous weapon.
"If you use lasers in this way, you must be prepared to face the consequences."
