Two people are still missing after an illegal coal mine collapsed Sunday in the northern province of Quang Ninh.
Initial information showed that one of victims is a 57-year-old worker.
The collapse occurred at a mine run by Nguyen Tien Sy, who one week before was fined VND12.5 million (US$600) for running the mine illegally.
Vu Van Hop, vice chairman of Ha Long Town People's Committee, said in Tuoi Tre that local agencies had already closed down the mine, but they still entered it.
According to Hop, the accident happened partly because recent heavy rains caused landslides around the area.
Related agencies are still looking for the victims.