Israel Adesanya was arrested Wednesday afternoon for criminal possession of a weapon at JFK airport in NYC, TMZ Sports has learned ... after the UFC superstar was allegedly busted while going through security with metal knuckles.
The arrest was made by the Port Authority Police Department near the TSA screening area ... near the American Airlines terminal around 1:57 PM.
Brass knuckles are illegal (class A misdemeanor) in the state of New York. It's also illegal to carry them on your person or in your carry-on bag.