At Logan Airport on Saturday, smoke began pouring out of the trunk when it was checked by security guards.
According to the transport safety administration, the incident resulted in the evacuation of a checked baggage inspection room for nearly an hour, and the Massport Fire Rescue and the National Police bomb force investigated the cause.
It turned out to be a lithium battery in an electronic device.
Cigarettes are on fire, officials say.
When authorities resolved the matter, the flight from the owner of the suitcase to Kansas City was delayed.
"The focus of TSA is to make sure that nothing catastrophic happens on the plane, so of course, a suitcase with smoke emissions is definitely suspicious," TSA said . ".