What do we know so far about Saturday's dramatic explosion on the Kirch Bridge between Russia and Crimea? There are many theories about it, but not all of them are reliable.
Russia immediately said a truck had exploded but did not say who was behind it. Camera footage shared on social media shows a truck reportedly coming from the Russian city of Krasnodar and about an hour away from the crossing. It passes on the west side of the bridge at the time of the explosion.
Russian authorities have named a 25-year-old man as the owner of the truck and said an elderly relative was the driver of the truck
However, a closer examination of the video shows that the truck has nothing to do with the explosion
In the video, flames can be seen on the back and side of the truck. Meanwhile, the truck is moving towards the uphill part of the bridge.
The mysterious truck explosion theory began to circulate in Russian circles. This gave the impression that it could be a possible 'terrorist attack' according to the Kremlin. It was said that Ukraine was behind it.
A former explosive professional withinside the British Army has said, "In my time, IEDs had been extensively set up in big vehicles, however, this doesn't appear to be the case here."
According to him, it is more likely that a large explosion was carried out under the bridge. It may have been done by a stealthy maritime drone.
They say that a bridge is constructed in such a way that it can withstand the downward pressure caused by the equipment and the wind coming from the sides.
These are generally not designed to withstand upward pressure. I think the same fact was used in the Ukrainian attack.
Some observers have reported that some other security camera videos show a small boat under the bridge shortly before the explosion.
Pictures on Russian social media on September 21 showed a mysterious boat with no passengers ashore near the Russian naval base in the Crimean city of Sevastopol.
According to local reports, the boat was pulled out of the sea and destroyed by an explosion.
The Russian-backed governor of Sevastopol said a vehicle was discovered without an occupant. After completing the survey, it was destroyed by an explosion at sea. No one was hurt.
These are not the first reports suggesting that Ukraine has access to such classified material.
British explosives professionals have stated that "there are credible reviews that Ukraine has faraway-managed motors for surveillance and for faraway maritime attacks."