WASHINGTON — One person was hurt and 12 families displaced after an apartment fire in Burtonsville, Md., early Saturday.
![A fire starting with a mattress displaced 12 families Satutrday morning in Burtonsville, Md., (Montgomery County Fire)](http://wtop.com/wp-content/uploads/2015/04/burtonsville-fire-225x300.jpg)
Montgomery County Fire spokesman Pete Piringer said the fire started around 12:30 a.m. Saturday in a third floor apartment on Blackburn Lane right off of Route 29 near Route 198.
The cause was determined to be “smoking materials” on a mattress. The damage is estimated at $450,000.