1.   At York University ... Police frogmen have been searching lakes looking for a weapon ... believed to be a six inch blade.

2.   Police frogmen have been searching the lake looking for a weapon.

3.   Police frogmen have been searching lakes looking for a weapon... believed to be a six inch blade.

4.   Wilson said investigators would wait until at least mid-week to begin searching the lake.

5.   Chinese explorers are searching a lake in southwest China for the wreckage of a U.S. fighter plane downed in World War II, state-run television reported Tuesday.

6.   Divers searched the lake until dark for Sollenne.

7.   FEATURE-US-MARS ON EARTH, from San Francisco, about scientists searching a lake bottom in North America for possible clues to life on Mars.

8.   Buzz Weiss of the Georgia Emergency Management Agency said divers were also to search a lake on the property.

9.   US troops searched the lake for the body until late on Thursday without finding it.