KYRA PHILLIPS, CNN ANCHOR: A decision to abandon the search for survivors would turn the operation over to Navy divers and to salvage experts with focus on recovering the plane's "black boxes" under 700 feet of Pacific Ocean. CNN's Siobhan Darrow reports on that part of the investigation. She joins us live -- Siobhan.</s>SIOBHAN DARROW, CNN CORRESPONDENT: Good morning, Kyra. You know, a decision about that could come as earlier as this morning, in about five hours -- actually four hours from now. National Transportation Board officials as well Coast Guard officials are expecting to hold a news conference here with details of their overnight search. Now, some 600 naval and Coast Guard rescue workers have been out all night looking for signs of life. Fishing boats, research ships, just about any sea-faring vessel has been helping in this grim task of collecting crash debris and clues to what made the Alaska Airlines flight plunge into the ocean. On the beach a few miles from here, a makeshift memorial has been erected as family member of victims begin gathering, as well as passersby and local residents, some just stopping to say a prayer or bring flowers for victims that they didn't even know. Now, NTSB officials have been on the ground here for some 24 hours. We're awaiting word on that "black box." The NTSB say that more sophisticated detection equipment is en route here so that they can get and zero in on that all-crucial piece of evidence. I'm Siobhan Darrow, reporting live from Port Hueneme Naval Base in California.</s>PHILLIPS: All right, thanks Siobhan.
Alaska Airlines Flight 261: Decision to Abandon Search for Survivors Could Come Today