He went to Yalta to attend a summit of leaders of the Commonwealth of Independent States from Sochi. Another Reason Russian officials say they have not determined how the Kursk got into trouble. Officials have offered various explanations, including a collision, an internal explosion or even contact with a World War II mine. The only journalist reporting from rescue ships in the Barents Sea stated today that rescuers have found buoys that do not belong to any Russian vessel. Directly after the accident several life buoys were discovered, two or three, which had uncharacteristic coloring for buoys of the Russian navy.
Russian buoys are red and white.
Mamontov did not name his source. But the Navy press service immediately denied this. Mamontov said all the Russian vessels that had been in the area at the time of the accident had been studied, and none showed evidence of a collision. NATO is categorically denying that any of their ships or any of the ships that belong to 19 NATO-member countries were involved. U.S. intelligence sources have said the most likely explanation for the disaster was an explosion of a torpedo or missile in the front compartment that ripped a hole in the side of the submarine.