Exploding Bullets - Not Hairspray - Caused Bomb Scare at Miami Airport: TSA

The unidentified 37-year-old man had 500 to 700 bullet primers in his luggage. Primers are considered the "spark plugs" of a bullet and ignites the gun powder, projecting it toward the intended target.

Officials originally said the exploding bag was caused by a hairspray aerosol can.

The situation turned out to be much more serious and could have been even more dangerous if the bag containing the combustible elements would have exploded while the plane was in the air.

The Miami-Dade bomb squad was called to the airport around 11:30 a.m. after a baggage handler said he was taking luggage to an American Airlines plane that had just arrived from Boston and a bag exploded, sending pieces of metal flying.