An official says authorities in southern Vietnam have seized nearly 4 tons of Vietnam War-era bullets from fishermen.

Nguyen Van Thuong of the provincial coast guard command said Monday that coast guards intercepted a fishing boat off the coast of Binh Thuan province over the weekend.

Thuong says the six fishermen told authorities that they found the bullets off the coast and intended to sell them for scrap metal. He says the rusty bullets will be handed over to the military for disposal.