Several dead in Pakistan factory collapse LAHORE, Pakistan, Feb. 6 (UPI) -- At least 11 people including women and children died when a three-story medicine-making factory collapsed in Lahore, Pakistan, authorities said. Dawn newspaper said the factory located in the New Town area of the country's second-largest city caved in after a blast apparently caused by a gas leak. The report said at least 11 people died in the Monday incident. News International, quoting rescue workers, reported at least 14 people died, including seven women and three children. The report said a boiler exploded, causing the factory, accused of operating illegally, and three homes to collapse. The report quoted sources as saying gas had been leaking from the boiler and a gas cylinder and caught fire due to short-circuiting. At least 15 more people were injured in the incident. News International quoted officials as saying several more workers were feared to be trapped under the rubble. Rescue workers searched through the night looking for survivors, while encountering difficulties bringing in equipment and cranes through narrow lanes. The report quoted a police official as saying the factory was operating illegally in a residential area. Another police official said the factory had been ordered closed three times in the past and it was not clear how it had resumed operations. The factory was reported to be making veterinary medicine and injections.