NEWARK (CBSNewYork) – Someone put a pin in this bad idea.

TSA agents detected a hand grenade in a checked bag at Newark Liberty International Airport Wednesday.

READ MORE: Officials: Long Beach Island Teen Nights Behind COVID Cluster Of At Least 11 Cases

The grenade “was an actual grenade that had been made inert,” according to the TSA.

The passenger who brought the grenade with him told the TSA agents he was on the way to military training.

MORE NEWS: Caught On Video: Man Violently Rips Necklaces Off Woman Out Walking Her Dog In Queens

“Perhaps train guys not to pack grenades!” TSA spokesperson Lisa Farbstein wrote on Twitter.