Two people were killed and three injured by an explosion at a stone quarry in the central province of Ha Tinh Tuesday.
The victims Nguyen Thi Nhiem, 52, and Tran Thi Tuyet, 31, were both locals and long time workers at the site.
Local police said 12 workers of Minh Tan Rock Mining Cooperative were blasting rocks with explosives. Some were not careful and let themselves get caught in the blast, they said.
The police said they are investigating the case further and plan to ban rock mining in the area.