Three people were killed and at least five others were hospitalized when a gas explosion destroyed a Dallas apartment complex Thursday afternoon, city officials said. The blaze erupted just before 1 p.m. in the Oak Cliff neighborhood, according to Dallas Fire-Rescue and the Dallas Police Department. Dallas Fire-Rescue said that the incident was deemed a two-alarm fire when crews responded to a call about a gas leak but that it escalated into a five-alarm fire. “Our first responders, while they were en route to that gas leak, a subsequent explosion occurred,” Deputy Chief Mark D. Berry said at an evening news conference. Three bodies were found in the debris of the complex. They were identified as two females and one child, said Jason Evans, a Dallas Fire-Rescue spokesperson, in an evening update. Five others were hospitalized, he said. Three were transported to hospitals, one of whom is in critical but stable condition. The other two have been released or will be by night’s end, Evans said.…