The image shows that the circle is in the form of black smoke, flying quite steadily between the clouds and existing for a period of time before gradually dissipating.
According to meteorological and atmospheric physics experts, this is most likely a "smoke ring" phenomenon, also known as a smoke ring.
This phenomenon often appears after pressure explosions, industrial gas releases or electrical transformer explosions.
When hot air and smoke are forced into the air, they can form circular vortices similar to cigarette smoke rings but with a giant size.
A number of similar cases have appeared in the US, China, Thailand and many large industrial zones around the world.
What attracts many people's attention is that the smoke ring in the video has a fairly complete shape, is dark black and stands out against the cloudy sky.
Many netizens initially speculated that this was a mysterious phenomenon or a strange flying object.
However, these types of phenomena can actually still be explained by science and are usually not dangerous.
There is currently no official information about the source of the smoke ring in the Ho Chi Minh City area this morning.
If there is a technical incident or industrial equipment explosion nearby, there is a high possibility that this is the cause of this special phenomenon.
What do you think about the mysterious smoke ring that appeared in the sky of Ho Chi Minh City this morning?
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