Around two tons of howitzer and mortar shells leftover from the Vietnam War have been unearthed at a construction site in the central highlands province of Kon Tum this week.
Around 300 shells, a grenade launcher, a land mine and a rocket had been unearthed as of Thursday as workers prepared the ground to build a new provincial military guesthouse.
Nguyen Hoai Son, head of the Kon Tum Military Engineers Unit, said the ammo had been pruposefully buried in a trench during the war.
Soldiers are still searching for more of the ammunition. Officials estimated that there are about ten tons of shells and other weapons in the trench, local news website Vnexpress said Friday.
Son said his soldiers would make sure the area is safe before building the guesthouse.
The ammunition found will be preserved at a safe place, he said.