1.   Exactly why two ships collided in open water when they had seen each other on radar remains a mystery.

2.   Ships are colliding at sea.

3.   Some people did not notice it in time, and disappeared in the rubble when the ship collided.

4.   -- One crewman of a Japanese ship was killed when the ship collided with a South Korean container vessel in western Japan, Maritime Safety Agency officials said.

5.   A Russian cargo ship collided with a Japanese fishing vessel near Kushiro port in Hokkaido on Wednesday, the Maritime Safety Agency said.

6.   A Russian cargo ship on Sunday collided with an Indian submarine undergoing repairs at a St. Petersburg shipyard, the Interfax news agency reported.

7.   A South Korean naval ship collided with a North Korean patrol boat Wednesday during an armed standoff in the Yellow Sea, the Defense Ministry said.

8.   A South Korean naval ship collided with a North Korean patrol boat Wednesday during a tense armed standoff in the Yellow Sea, the Defense Ministry said.

9.   An inter-island ship collided with a cargo barge in the central Philippines early Wednesday.

10.   An Italian navy ship Friday collided with a boatful of Albanians seeking to reach Italy, and at least four people were killed.