Firefighters and utility crews say they're looking into an active gas leak after a house exploded Sunday night, injuring at least two people and displacing dozens of families in Centreville, Virginia.

The leak came from one of the three transmission lines running underground through the neighborhood. Crews are still working to pinpoint the source.

Firefighters have evacuated 31 homes in a Centreville, Virginia, neighborhood as crews work to resolve a gas leak discovered after an apparent explosion late Sunday night. Multiple residents said they ...