If you’re on the market for a used iPhone X and are looking to purchase one through an online classified site, then buyer beware. Peel Police says there’s a scam going around that’s managed to trick at least a few people.

Peel Regional Police said in a release Sunday that at least one individual is selling fake iPhones on multiple online websites, including Kijiji and CraigsList.

The way it works is that the individual meets potential buyers in person. Then upon examination, the phone appears authentic, but when buyers try to use the phone later they discover it’s a fake.

Multiple incidents have been reported recently in Brampton and Mississauga, and there may be more because embarrassment keeps some people from reporting.

Peel Police says that buyers should keep a few things in mind when buying items on Kijiji and other classified sites — if an item’s price is too good to be true then it probably is, and don’t make online purchases from unverified and unknown sources. If you’re looking at purchasing something, do your due diligence and ask questions.

Peel Police also recommend using their safe exchange zones where you can meet strangers to pick up and drop off items purchased through online ads. Safe exchange zones are located at 11 Division (3030 Erin Mills Parkway, Mississauga), 12 Division (4600 Dixie Road, Mississauga) and 22 Division (7750 Hurontario Street, Brampton).