Article Photos: Indiana blast investigation focuses on natural gas 4/24

  Emergency personnel work at the site of a home that was destroyed by an explosion 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/Darron Cummings)