Deadly Indianapolis explosion investigation may take weeks INDIANAPOLIS, Nov. 11 (UPI) -- The investigation into an explosion in Indianapolis that killed two people and damaged a dozen homes could take weeks, officials said Sunday. The explosion was reported just after 11 p.m. Saturday in the Richmond Hill neighborhood, WISH-TV, Indianapolis, reported. Citizens Energy has shut off gas to all the homes in the area and investigated potential gas issues in the neighborhood. Indianapolis Fire Department spokeswoman Bonnie Hensley said the department continued investigating Sunday. Some of the 200 people who were evacuated from the area were allowed back into their homes Sunday morning, The Indianapolis Star reported. Firefighters allowed people to return to homes with little or no structural damage. Resident Whitney Paflanzer said it was "like a war zone."