In this Feb. 8, 2011 photo, emergency crews respond to a massive explosion in a residential neighborhood of downtown Allentown, Pa. The natural gas explosion in Allentown killed at least one person, leveled two houses, spawned fires that burned for more than seven hours and prompted the evacuation of hundreds of people. At least five others were unaccounted for Thursday. (AP Photo/Express-Times, Chris Post)
Read the article: Coroner: PA Natural Gas Explosion Kills 5
