At least four people were killed and one injured in an explosion in Vietnam's capital Hanoi on Saturday.
According to the Vietnamese central government's online newspaper, the explosion took place in Ha Dong district, Xinhua reported.
The explosion left a crater one metre deep and four square metres in area, said the report.
Three people were killed on the spot while the fourth died on the way to hospital.
Many houses in the area were impacted while six motorbikes were burnt and one car was damaged by the explosion, said the report.
Police was investigating the cause of the explosion. Meanwhile, the media reported that two people were seen trying to cut an oxygen cylinder which probably caused the accident.