A coal miner was killed Monday night after striking a bomb in the northern province of Quang Ninh.
The worker Le Hong Phong, 23, was digging coal at a mine managed by Mong Duong Coal Company, a subsidiary of state coal and mining group Vinacomin.
Phong was killed on the spot when the bomb went off.
There's no information available about where the bomb originated from.
Police are investigating the case further.