"This is an assault on a pilot as far as I'm concerned … It is a criminal matter. You're putting the lives of not just the pilot but everyone on the plane at risk," Rich Frankel, the FBI agent in charge of Newark, New Jersey, told ABC.
Frankel noted that the FBI has yet to determine the precise location of the offending lasers.
"Its difficult [to identify the violator], again, just because of where the plane is, that the plane is moving at a certain speed, that it's a fixed location on the ground," he concluded.
Lasers can distract or even temporarily blind an aircraft pilot if the cockpit is targeted.
"Those who have been subject to such attacks have described them as the equivalent of a camera flash going off in a pitch black car at night," the Transportation Security Administration wrote in a statement on its website.
Nonetheless, the number of so-called “laser attacks” on planes across the US is growing dramatically, media reports. According to the FAA, the figures have risen from 283 in 2005 to 3,894 in 2014. CNN reported that, on a given night, there is an average of 10.5 “laser attacks” on planes across the entire US, throwing New Jersey’s reported 11 on Wednesday into starling perspective.