A 50-year-old man was arrested in Florida in connection with an "explosive parcel" aimed at a Democrat in the United States, CNN and other US media reported.

The arrested suspect was reported to be a 56-year-old Caesar Seiyaku, who lives in Auburn, Florida.

The New York Times reported that since 1991, there has been a history of criminal activity, including theft, drugs, fraud, and threats to use explosives.