The incident occurred minutes before 2 am on Sept. 26, 2011, in a building located on the intersection of Luis Vernet and Los Andes, a town of Monte Grande, of Esteban Echeverría.Causes of the explosion are still unknown, but locals say they witnessed the "a ball of fire fell from space."

"There is no explanation for what happened," said Cayetano, a local resident, told Radio 10.

The commander of the local fire department, Guillermo Pérez, remarked that they still do not know the cause of the incident.Perez confirmed that two trade houses and "were completely destroyed."

In fact, a woman who was trapped under the rubble was killed while eight others were rescued and were taken for care at a local hospital, told C5N firefighters who work on site.According to the neighbors, the explosion was felt even in adjoining towns as Ezeiza and Temperley, south of Buenos Aires.