Russian investigators are studying the Kursk submarine. They are trying to find out the cause of the explosions that sank it on August 12, 2000. Now, investigators say the sinking was not caused by a wreck with another ship. They also think the explosion could have been caused by a problem with a torpedo on the submarine. The Kursk is now at the bottom of the Barents Sea. A final report is expected in May. What is this passage mostly about?
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Russian investigators have been working very hard to make the final report.
The Kursk sank to the bottom of the Barents Sea on August 12, 2000.
Investigators are still studying the sinking of the Kursk submarine.
The reason that the Kursk sank will be revealed by investigators in May.

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