1.   A fire control technician has told investigators that he had tracked the vessel to that distance but failed to record its location on paper or inform the captain.

2.   But they said that there can be limitations in the ability to track vessels that are either directly in front or behind a submarine.

3.   He said that when he passed through the sonar room earlier in the day, the operators had been tracking five vessels.

4.   Second, the Coast Guard uses radar and closed-circuit television cameras to track each vessel in the channel.

5.   Officials in Japan refused to confirm a report by the Kyodo News agency that Japanese radar tracked the vessels entering North Korean waters on Wednesday.

6.   The French navy was tracking the vessel with three or four warships as well as a helicopter, Komites said.

7.   The sonar operators track surface vessels.

8.   The vessel had been tracked from Gibraltar in an operation involving police, Customs, the Irish navy and air force and British authorities.

9.   Tobin said Canada was tracking the vessel and he urged the EU to call it back.

10.   Greenpeace campaingners have pledged to track the vessel carrying the waste all the way to Japan.