1.  Japanese authorities gave an entirely different account, saying that the fishing vessel was operating in Japanese waters near what Japan calls its Northern Territories.

2.  Japanese defense officials say U.S. military satellites first tracked the boat entering Japanese waters.

3.  On Saturday morning, a coast guard boat, the Inasa, caught up with the boat inside Japanese economic waters.

4.  The fish resembled medaka, a Japanese fresh water fish that looks something like a guppy.

5.  The U.S. government reportedly warned the Japanese last week about the intrusion of a North Korean boat into Japanese waters.

6.  Two Chinese marine survey vessels are now exploring in what Japan regards as Japanese waters around the islands.

7.  A Japanese court fined the captain of a South Korean fishing trawler Wednesday for operating in Japanese waters and injuring a Japanese official.

8.  But the antennas and false names indicated they may have been in Japanese waters for spying operations.

9.  Five Chinese vessels have been conducting what appear to be oceanic observations for several days in Japanese waters without permission, the Japanese coast guard said Friday.

10.  Foreign ships are free to travel in Japanese waters but need special permission to land.