Some holiday travelers experienced an uninvited guest aboard a flight headed for a sunny destination.
Passengers traveling from Amsterdam to the Caribbean spotted a rat running through their cabin.
The KLM flight was headed for Aruba, where it was then supposed to continue to the island of Bonaire.
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Passengers waiting to board their flight to Bonaire were notified that the flight had been grounded - with the ride ultimately canceled.
A KLM spokesperson told Fox News Digital on Tuesday that this was a "very exceptional incident."
"The safety and well-being of our passengers and crew are always our top priority," the spokesperson said.
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"That is why we canceled the flight from Aruba [to] Bonaire," the spokesperson added, "so that the aircraft could be thoroughly cleaned before being put back into service."
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In a video shared on social media, people called the rat "massive."
It was seen scurrying across the overhead curtain track in the cabin.
Rats can pose a serious risk to public health by spreading diseases.
Threats include bacterial and viral diseases such as monkeypox, leptospirosis and salmonellosis, according to the Centers for Disease Control and Prevention (CDC).
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The rodents can also cause rat-bite fever (RBF), which can produce flu-like symptoms such as fever, vomiting, muscle pain and possible rashes.
"RBF can spread to people through scratches, bites, or contact with a rodent's saliva or pee," the CDC notes.
Back in 2023, a rat and an otter were smuggled into a passenger's suitcase on a flight from Bangkok to Taiwan, as Fox News Digital reported at the time.
An employee caught the rat - and was bitten on the hand.
