The house where the incident occurred.
According to a report from local authorities, some residents saw the fire breaking out from a house in Truong Xuan Ward at 1.30 am on January 8.
Some people came to help put out the fire and found the bodies of Nguyen Thanh, 39, and his wife Nguyen Thi Kim, 38, inside. Meanwhile, their son was injured in his arms and has been sent to a local hospital for treatment.
Local people called the police who arrived and found a can of petrol at the site.
Some neighbours said that this is the house of Kim's mother. Kim recently moved here to live with her mother after an argument with her husband.
Police are investigating the causes of the incident.