VILNIUS - Lithuanian customs and postal officials say they have found a fully functional machine gun dating from World War II, complete with ammunition, in a package at Vilnius International Airport.

Officials said Tuesday that the German-made MG-42 machine gun was found after scanning a suspicious 20-kilogram (44-pound) package posted in Lithuania and bound for Germany.

Customs spokeswoman Asta Mikeleviciute says it was the first time that customs authorities had ever uncovered such a parcel and an investigation has been launched.

No evacuation of the capital's airport was ordered, but authorities were placed on alert.

More than 65 years after the war, Lithuania and other East European countries continue to uncover large amounts of weaponry and unexploded ordnance.