cleveland fire officials say bricks along top of the former national city bank building collapsed and showered down onto the street and sidewalk just after 4 p.m. monday but no one was injured .
cleveland fire spokesman larry gray told local media the falling bricks might have been a ` freak accident ' and said that the building was not under construction .
the building and minivan were unoccupied at the time of the collapse , and no injuries were reported .