Authorities discovered two packages containing explosives Friday in Britain and Dubai, which were terrorist attacks aimed at the United States.
Preliminary tests indicated that the packages, which were found on cargo planes in Britain and Dubai, contained PETN, according to the Star Tribune. PETN is an industrial explosive that was also used on Dec. 25 when a Nigerian man attempted to blow up an airliner in Detroit.
President Obama said, "The events of the past 24 hours underscores the necessity of remaining vigilant against terrorism," according to the New York Times.
Cargo planes were being searched along the East Coast, according to the Star Tribune. However, no other packages have been discovered.
Government officials do not want to assume that all plots were discovered and disrupted, according to the Star Tribune.