The Lebanese army says two missiles found on a passenger flight from Lebanon to Serbia were used for training and did not contain any explosives.

Monday's announcement came after Serbia's authorities began investigating reports that a cargo package bound for the United States containing two missiles with explosive warheads was found on the flight.

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The army says the missiles were being sent to the American company that produced them. It says the return was in accordance "with administrative and legal measures after the training ended."

On Sunday, Serbia's N1 television said the package with two guided armor-piercing missiles was discovered Saturday by a sniffer dog after an Air Serbia flight landed at Belgrade airport. The American-made projectiles can be fired from air, seaor ground platforms.

Serbian media said documents listed the final destination for the AGM-114 Hellfire missiles as Portland, Oregon.

N1 television said the package with two guided armor-piercing missiles was discovered Saturday by a sniffer dog after an Air Serbia flight from Beirut landed at Belgrade airport.