Tonight the terrifying house explosion in Virginia one firefighter dead 13 more people

injured horrific scenes of the aftermath the house reduced to rubblefighters were already on the scene investigating a gas leak now grieving the loss of one of their own. How the people who live there survived.

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officer. This is NBC nightly news with Jose Diaz-Bell. Good evening, it is every homeowner's nightmare, a gas leak leading to an explosion.

Authorities are investigating if that's what happened last night in the Virginia suburbs of

Washington DC. This was the scene immediately after the explosion a house

reduced to rubble. Neighbors nearby hearing a lot explosion and then seeing the aftermath.

Firefighters were trapped inside the wreckage.

Other first responders had to pull them out.

One unfortunately did not survive.

And just then now we are getting our first look at the wreckage in daylight.

You can see where the house once stood.

Now investigators trying to determine exactly what happened while mourning one of their own.

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