The fire broke out in the home of Nguyen Duc Vinh, 46, and his wife Nguyen Thi Kieu, 41, at around 3am yesterday, Tuoi Tre newspaper reported. Kieu was three months pregnant.
Their two sons, aged 19 and 12, and Vinh’s elderly parents also died in the blaze.
When firefighters managed to break down the door they found large amounts of burning cloth by the entrance, which could have prevented the family from escaping, Dan Tri newspaper said.