Woman Pulled From Philadelphia Building Collapse as Death Toll Rises to 6 A 14th survivor was pulled from the rubble of a collapsed a four-story building in central Philadelphia minutes after officials said six people were killed and at least 13 people were injured. Rescue workers used buckets and their bare hands to move bricks and rubble to free a 61-year-old woman late Wednesday night identified as Myra Plekam of Kensington, Pa., Philadelphia Public Safety Director Michael Resnick confirmed to ABC News. Plekam was taken to the Hospital of the University of Pennsylvania and listed in critical condition. Plekam's rescue came more than 12 hours after the building collapsed. Resnick said Plekam was the last person officials knew of trapped in the rubble. Officials caution that there could still be people trapped that the fire department didn't know about. Minutes before the woman was pulled from the rubble, Philadelphia Mayor Michael Nutter said one man and five women were among the dead, but did not release their names at a late-night news conference. At least 13 other people have been transported to hospitals with minor injuries, according to authorities. "This has been a tough day here in the city of Philadelphia but we're a pretty tough city and we're quite resilient," Nutter said. Fire officials said that 40 percent of the collapsed building still needs to be checked. Officials declined to say how much longer they will remain at the site to search for potential survivors, but Nutter insisted that the search will continue through the night. "We did not know and we still do not know how many people were actually in the store or possibly on the sidewalk or some other area adjacent to the Salvation Army thrift store," he said. The building was in the process of being demolished when an exterior wall that it shared with an adjoining building fell outward Wednesday morning, collapsing into the adjoining two-story building that housed a Salvation Army Thrift Store. At least one victim has already been released, and others were expected to be discharged sometime Wednesday. "They were a bit stunned, they were saying they heard a loud noise and then the ceiling began falling," Dr. Elizabeth Datner said at a news conference Wednesday. Firefighters were first dispatched to the building at 10:43 a.m. and arrived at 10:45 a.m. to begin working, Fire commissioner Lloyd Ayers said. Eyewitness Dan Gillis was just working across the street when the building collapsed. They've been working over there for about a week now. It was a 30 foot wall, they started pulling on a piece of steel, and I seen the whole wall just waving back and forth, and as soon as they pulled that out, there was no stopping it," Gillis told ABC News affiliate WPVI-TV. Roofer Patrick Glynn said he had been watching workers take down the building over the past few weeks, and he said he suspected a collapse was inevitable because of the way they were going about it. "For weeks they've been standing on the edge, knocking bricks off," he told The Associated Press. You could just see it was ready to go at any time. I knew it was going to happen.