Over 100 artillery shells were found underground in the southern province of An Giang Wednesday.
According to the provincial military headquarters, the 105-milimeter shells were unearthed within the premises of the community house in Tri Ton District.
They were kept in a vault full of water, the headquarters said, adding that the enclosure was 3x2 meters and located some 1.5 meters underground.
The military agency, which dug up the vault after locals said water from it was leaking into the ground, has isolated the weapons.
Authorities said they would deactivate the shells this week.