Uber has filed a complaint with the Port Authority after what they say is a surge in fake cabs and illegal driver activity at JFK and LaGuardia airports.

"In recent weeks, conditions at the terminals have worsened and reached crisis levels," Josh Mohrer, Uber's New York City manager, wrote in a letter to Port Authority's Executive Director. Mohrer asked the PA, which oversees both airports, to crack down on illegal drivers.

At both JFK and LaGuardia, TLC regulations stipulate that for-hire vehicles—which includes both yellow cabs and cars dispatched by ride-sharing apps—are only allowed to perform pre-arranged trips through a base station. That doesn't mean riders have to schedule a pickup far in advance; waiting on line at a yellow cab station, e-hailing an Uber driver, or calling for a car service as soon as you arrive is fine. And anyone who's ever flown into JFK or LGA knows there have always been drivers who skirt these rules.

But according to Uber, an increasing number of illegal cab operators aren't just looking for passengers at the airport—they're ripping off unsuspecting tourists and in some cases, even impersonating Uber drivers.

"In some cases, riders even report that drivers are using makeshift signs with the word 'Uber' on them to get travelers into their cars," Mohrer wrote. (I've experienced this firsthand: the last time I flew into LGA, a driver with an "Uber" sign pulled up to me and told me to get into his car. I checked his plate and realized he wasn't my driver—and perhaps wasn't an Uber driver at all—but he urged me to get in anyway. I declined.)

In other cases, drivers allegedly go into the airport to seek out passengers. An employee at LGA told the Post that Uber never sends its drivers into the airport.

"We're supposed to tell the supervisor, but because there's so many of them coming in at a time, you don't want to report it when there's so much heavy activity going on," the worker said.

TLC officers have issued 5,525 summonses and made 74 arrests for illegal street hails and unlicensed activity this year, TLC spokesperson Rebecca Harshbarger told Gothamist.

"Our visitors' first impression of NYC cannot be an illegal hustler trying to overcharge them for an unsafe ride when we have so many safe, licensed options," Harshbarger said. "Working together with the Port Authority on consistent enforcement to keep the pressure on and keep these poachers away from passengers is essential."

According to an investigation conducted by Uber, more than 2,300 illegal trips are happening between both airports every week.

The Port Authority did not immediately respond to requests for comment, but we will update when they do so.