Dramatic footage has emerged from Mexico City of a building partially collapsing moments after a powerful earthquake hit the area.<br /><br />The video, captured on September 18, shows huge slabs of the government's national employment office falling down with pedestrians nearby. <br /><br />Construction workers can also be seen fleeing the building.<br /><br />''I was passing by the Servicio Nacional de Empleo and suddenly I saw some small fragments falling down the building," said the filmer, David Chavez. "So I began to film.''<br /><br />He added: ''I saw huge fragments falling above people on the street. It was so shocking so I stopped filming,'' <br /><br />Authorities dug through rubble early Wednesday following Tuesday's magnitude 7.1 quake, searching for survivors. At least 248 are confirmed dead.<br /><br />++CLIENTS PLEASE NOTE: THIS VIDEO HAS BEEN LOOPED++
