Serbian authorities are investigating reports that a cargo package bound for the United States containing two missiles with explosive warheads was found on a passenger flight from Lebanon to Serbia. The package with two guided armour-piercing missiles was discovered on Saturday by sniffer dogs after an Air Serbia flight from Beirut landed at Belgrade Airport. Serbian media say documents listed the final destination for the AGM-114 Hellfire missiles as Portland, Oregon via London. The American-made projectiles can be fired from air, sea or ground platforms. "We can confirm that a cargo consignment, being carried to an onward destination, was intercepted at Belgrade Airport [on Saturday] as a result of stringent security screening measures. The airline is assisting with the investigation. Safety and security is Air Serbia's number one priority”, the carrier said.