Nigerian-born Israel Adesanya has been released after he was detained at a New York airport following an attempt to go through security with brass knuckles. SaharaReporters had reported how Adesanya was arrested on Wednesday at JFK Terminal for possessing metal knuckles. Brass knuckles, made of metal or plastic, are illegal in New York, and their possession is considered a misdemeanour punishable by up to one year in prison plus fines.