The U.S. Strategic Command on Monday apologized for a New Year's Eve tweet joking about dropping bombs.
"#TimesSquare tradition rings in the #NewYear by dropping the big ball...if ever needed, we are #ready to drop something much, much bigger," the U.S. Strategic Command's official account had tweeted earlier in the day.
Accompanying the tweet was video showing the dropping of "a pair of conventional Massive Ordnance Penetrators (MOPs) at a test range," a spokesman told NBC News.
MOPs are 30,000-pound bombs meant for hitting underground bunkers.
U.S. Strategic Command said in a subsequent tweet Monday that the earlier message was in "poor taste."