(Courtesy ABC 7)

A townhouse was completely destroyed by a gas main explosion today in the Rockland County town of West Haverstraw. Officials say a road construction crew had ruptured the gas main near the property around noon. Workers immediately notified authorities, and volunteer firefighters raced to the area to begin evacuating residents. As two volunteer firefighters were knocking on the door to evacuate a house on Zarriello Lane, it exploded. LoHud.com reports that the volunteers were seriously injured.

So far it's believed that no one was inside the house. Gas from the ruptured main went into the sewerage system and seeped into many houses, and at least 100 homes have been evacuated. Power to much of the surrounding area has been cut, and besides the firefighters, two workers also suffered injuries, ABC 7 reports. We'll update as more information becomes available.