3 firefighters injured in explosion, fire after apparent gas leak on Amherst Street in Nashua Three firefighters were injured, one seriously, in an explosion and fire at a commercial building on Amherst Street in Nashua, News 9 Investigates has learned.

Gas leak and explosion in Nashua. #NashuaNewHampshire #Nashua #440Amherst #GreaterNashuaMentalHealth www.wmur.com/article/gas-...