[link to news.yahoo.com]

The two-story, brick-faced homes on either side of those demolished by the blast were ruins. One home's roof was gone, a blackened husk left behind. On the other side of the gap, the side of a home was sheared off. Across the street, garage doors had buckled from the heat.

It wasn't yet clear what caused the blast that shook the neighborhood at 11 p.m. Saturday. Residents described hearing a loud boom that blew out windows and collapsed ceilings. Some thought a plane had crashed or that it was an earthquake.