article_snippet: Also ahead: Trying to determine why the aircraft went down in thick fog during a training mission Tuesday, Monte Cannon said.
article_snippet: Two Black Hawk helicopters were training near Eglin in heavy fog when one of Two Black Hawk helicopters went down in the sound -- a narrow body of water between mainland northern Florida and a barrier island -- about 8:30 p.m. Tuesday, The military has said.
article_snippet: Whatever the trouble was with the one aircraft, the trouble did not involve the second helicopter that was participating in the exercise," Eglin spokesman Andy Bourland said earlier this week.
article_snippet: Investigators from the Army and the Marines will try to determine what caused the wreck, Cannon said Thursday.
article_snippet: Military officials have said it's too early to know whether the fog contributed to the crash.
article_snippet: On Wednesday morning, after searchers got a sonar hit, a diver found the bulk of the wreck at the bottom of the sound, " Giuliano said.
highlights_snippet: Crash happened Tuesday in foggy conditions, which hampered initial search .