Explosion, fire at Silver Spring apartment complex last week is ruled an accident

An explosion and fire that destroyed a Maryland apartment building last week was accidental and caused by a maintenance worker who cut a gas line instead of a waste pipe, an official said Monday. Montgomery County Fire and Rescue Services Chief Scott Goldstein said his department cannot say what specifically ignited the fire in which 14 people were hospitalized. Goldstein said his department is wrapping up the investigation at the site.