Updated:SEATAC, Wash. —
A Transportation Security Administration spokesperson tweeted a picture Wednesday morning of brass knuckles.
The weapon was found in a passenger's carry-on bag at Sea-Tac Airport by a TSA agent on Tuesday, according to the tweet from @TSAmedia_Lorie.
For safety and security, the TSA prohibits certain items in carry-on and checked bags.
A list of items that are not allowed in carry-ons and checked bags is available at tsa.gov.
According to the list, brass knuckles, as well as billy clubs, nunchucks and throwing stars, are prohibited in carry-ons but allowed in checked bags.
Dynamite, hand grenades and fireworks, however, are not permitted in either carry-ons or checked bags.