Examine fire pits in Saigon

During the fire attack, the authorities noted the strong smell and copper metal. This morning, the pit continued to explode, spraying fire, the soil temperature was about 50 degrees Celsius.

>>>Fire spray from "death hole" after the explosion

On the morning of October 29, Ho Chi Minh City Department of Science and Technology, Center for Laboratory Analysis Services, City Power Experiment Company, Gia Dinh Water Supply Company . were present at the scene before the house at 236 Binh Lo Street , ward 13, Binh Thanh district to examine the hole that was sprayed after the explosion yesterday.

According to the image of Georadar machine (one type of machine can check the geological layer at the position of 3-4 meters above the road surface) below the road surface with construction works such as electric cable, water supply pipeline.

Ho Chi Minh City Center for Laboratory Analysis took samples of soil, gas and water to test for the cause of explosion and fire.

While digging about 50cm, the authorities discovered a piece of copper metal.Under the pit, there is also a strong odor of sulfur.

Under a hole more than a meter deep is the cable of Gia Dinh Electricity. "We have checked that the power line in the area is still in normal power supply. However, it does not rule out the problem from the power cable affected by the waterway two months ago by the water supply company. I am waiting for conclusions from the new authorities to be able to carry out tools to find the cause, " said Nguyen Van Hao, deputy technical director of Gia Dinh Electricity Company.

Many soil samples at different depths are taken.According to Mr. Nguyen Quang Manh, owner of 236 Binh Loi, about 4h20 this morning, the hole continued to explode and spray fire.When digging for samples, the laboratory staff said that the soil in the pit is about 40 -50 degrees Celsius.

Sample of water is put into the tube for testing.

Vacuum to sample gas into the bag.

The representative of the Experimental Service Center said that it is expected to have test results on October 30.

The area detecting "fire spray hole" is located near Saigon river, about 1km from Binh Loi bridge.While waiting for test results, specific causes of "strange phenomenon", the pit area will be blocked.Part of the area is disconnected.

This morning, the authorities also collected information from Mr. Nguyen Quang Manh, the owner of the house discovered fire sprayed from the hole after the explosion.