The FBI is warning the public to remain vigilant after bombs and suspicious packages were intercepted. "It is possible that additional packages were mailed to other locations," the FBI said in a statement. "[Do] not touch, move or handle any suspicious or unknown packages." Anyone with information about the bombs and packages is urged to call the FBI at (800) CALL-FBI or visit tips.fbi.gov. If you observe any suspicious activity that requires an immediate response, please call 911 or contact your local law enforcement.