Emergency personnel responded to reports of a gas leak at County Road and 7th Street in Minden at about 10:50 a.m.
First responders and Southwest Gas officials quickly arrived on the scene.
Residents of two houses in the vicinity were evacuated, and traffic has been diverted from the area.
Reports indicated a "larger line" had been ruptured.
A cause has not yet been confirmed, but construction has been taking place on County Road throughout the week.
A ditch parallel to the road is being filled in and replaced with a pipe.
