Transcript for Search for answers after major gas line explosion
Now to the investigation under way to that massive deadly gas line explosion in Kentucky, killing one person, injuring several others and flattening homes around it. ABC's Alex Perez is on the scene in Lincoln county, Kentucky with the latest. Good morning, Alex. Reporter: Good morning, Michael. People who live here say it sounded like a war zone. I want you to take a look behind me. You can see those charred cars and debris here. You see that Orange fence that marks the exact explosion, sites authorities are now trying to figure out what caused all this. This morning, federal investigators expect that on the scene of this massive explosion. The 1:30 A.M. Blast rocking this rural community, the roar jolting residents out of bed. You could feel the ground moving and tumbling and rolling. Reporter: The high-pressure 30-inch high gas pipeline exploding, shooting a fireball 300 feet in the air. Some residents suffering burns as they ran for their lives. It looked like a tornado, like a fire tornado. It was so hot, I don't -- I don't see how we got out of there. Reporter: Daylight has shown the extent of the blast zone. Land completely charred, cars at least five homes decimated. Jason says it looked and sounded like a war zone. It looks like a bomb has been dropped. It has leveled everything around it. There is nothing left. It's just gone. Reporter: A 58-year-old woman who was trying to escape the blast was killed. The 9,000-mile pipeline that runs through here carries natural gas from the gulf of Mexico to the northeast. Authorities are trying to pinpoint exactly what triggered the rupture. All things considered, authorities say this could have been much worse. They say they are very lucky that more people were not killed. Michael? Awelcomes, thank you so much.
This transcript has been automatically generated and may not be 100% accurate.