This aerial photo shows the two homes that were leveled and the numerous neighboring homes that were damaged from a massive explosion that sparked a huge fire and killed two people, Sunday, Nov. 11, 2012, in Indianapolis. Nearly three dozen homes were damaged or destroyed, and seven people were taken to a hospital with injuries authorities said Sunday. The powerful nighttime blast shattered windows, crumpled walls and could be felt at least three miles away. (AP Photo/The Indianapolis Star, Matt Kryger) NO SALES
INDIANAPOLIS (AP) — Officials say as many as 31 homes were damaged so badly in a blast that killed two people in Indianapolis that they may have to be demolished.
Deputy Code Enforcement Director Adam Collins estimated the damage at $3.6 million.
Deputy Fire Chief Kenny Bacon told reporters Sunday investigators haven't ruled out any possible causes of the late-night blast that was heard miles away.
But a congressman who represents the Indianapolis neighborhood says investigators have ruled out a bomb or a meth lab.
U.S. Rep. Andre Carson said he had received that report from Homeland Security officials during a tour of the devastated middle-class subdivision.
Residents described a loud boom that shook their homes, blew out windows and collapsed ceilings.