An investigation team of the Defense Ministry on Wednesday revealed additional video footage filmed using a thermal observation device at the moment the Navy corvette Cheonan sank in the West Sea on March 26.
There are three sequences. In the first, shot between 9:02:26 and 9:02:29 p.m., the ship travels normally. In the second, between 9:22:38 and 9:23:39 p.m., the stern begins going to sink quickly while the bow lists 90 degrees, after the bow and the stern are clearly separated. Then the stern disappears from the screen in just a minute. In the third, between 9:23:40 and 10:07:23 p.m., the bow goes under.
The additional footage was discovered by the joint civilian-military investigation team during an inspection of the video surveillance system of the Sixth Marine Brigade.
At guard posts equipped with a night vision, video clips are recorded only when a duty soldier pushes the start button, but the camera at headquarters automatically records clips.
A ministry official said, "We had not received any report about this latest footage but the investigation team dug them up. Nothing was recorded before 9:22 p.m. because the soldier operating the camera did not aim it at the Cheonan at the time."
Earlier, the ministry revealed footage showing the stern listing sideways, which was filmed at a guard post on Baeknyeong Island for about 40 minutes from 9:23:46 p.m. right after the explosion on the ship. At the time it denied there was any more footage.