MIAMI (AP) - The FBI says a 37-year-old man has been arrested after security found firearm parts in his bag at Miami International Airport. 

According to Reuters news agency the FBI described the man as a 37-year-old nationalized U.S. citizen travelling en route to Jamaica. Authorities did not specify his previous nationality. 

Miami-Dade police say something exploded inside the bag while it was on the tarmac on Tuesday. Detective Edna Hernandez said a preliminary investigation suggested it was an aerosol can. 

The Transportation Security Administration says security then found firearms parts in the checked baggage that arrived on an American Airlines flight from Boston. No one was injured. 

No information on the man's name or charges was immediately available.