JEANNE MESERVE, CNN ANCHOR: Federal investigators say it could take months to learn what caused a pipeline to explode south of Carlsbad, New Mexico. Ten campers, five of them children, died in Saturday's huge blast. Two others remain hospitalized in critical but stable condition. CNN's Jim Hill joins us with more -- Jim.</s>JIM HILL, CNN CORRESPONDENT: Well, Jeanne, as you say, investigators are still piecing together the evidence here south of Carlsbad, New Mexico trying to figure out what caused Saturday's huge fireball, huge natural gas explosion. About 150 miles away, meanwhile, in Lubbock, Texas, the two surviving members of the camping party, the only people to survive that blast, are still in critical but stable condition: a man with burns over 60 percent of his body, a woman, his daughter in law, with burns over 20 percent of her body. Now, this huge fireball, which was visible, by the way, 30 miles away in Carlsbad, erupted early Saturday morning along the Pecos River. The party of 12 was camping in that area, fishing. The line ruptured inexplicably about 200 yards from their encampment. Again, for an unknown reason, it ignited. The fireball killed six people instantly, six others were rushed to the hospital, but four of them died on the way or shortly after arrival. This gas line is underground, anywhere from eight to 15 feet underground. And at the point of explosion, it left a crater about 20 feet deep, 85 feet long and 25 feet wide -- an incredibly forceful explosion. This is an isolated area. Tragically, it was just happenstance that the dozen campers were in this area at the time the gas line ruptured. And it's a good chance, investigators say, that something in their encampment, something sparked the explosion -- Jeanne.</s>MESERVE: Jim Hill, thanks for joining us.
Investigators Search for Clues in Deadly New Mexico Gas Pipeline Explosion