Authorities inspect the area where the accident happens
According to a report from authorities in Tuan Giao District, the two sisters Sung Thi and Sung Thi Pang aged five and three were swept away by a flash flood while on the way home on a motorbike with their parents on the afternoon of July 5.
The father Sung A Vang was carrying his wife and their four small children on a motorbike through a dried stream when the flash flood suddenly swept them away. The couple managed to save their two children aged seven and five months while the other two disappeared in the torrent. Their bodies were later found some 300 metres away from the site.
The northern region has been seeing heavy rains that have mainly occurred in the afternoons and evenings over the past few days.
On the early morning of July 7, a landslide triggered by heavy rains hit a stilt house in neighbouring Ha Giang Province, leaving two people dead and two others seriously injured.
Rescue forces at the house collapse in Ha Giang Province on July 5.
The landslide also damaged 14 other houses, a suspension bridge, and some roads in Ha Giang's districts of Hoang Su Phi, Xin Man, and Vi Xuyen.
Heavy rains have also caused serious landslides in many areas of Thai Nguyen Province, blocking traffic on many roads in Dai Tu, Dinh Hoa, and Phu Luong districts. Over 19 hectares of rice fields have also been damaged.