![A two-alarm fire started on the roof of a building near 12th and N streets in Northwest at about 4:15 p.m. and the blaze extended into a top floor apartment. (Courtesy D.C. Fire and EMS)](https://wtop.com/wp-content/uploads/2016/07/fire.gif)
![Fire crews used a tower ladder to fight the flames and knocked it down by about 4:40 p.m. (Courtesy D.C. Fire and EMS)](https://wtop.com/wp-content/uploads/2016/07/fire2.jpg)
![](https://wtop.com/wp-content/uploads/2016/07/CoUYZ0KUEAARNVi.jpg)
12th street NW at N street. Thick smell of smoke in the air. @nbcwashington @DMVFollowers @WTOP pic.twitter.com/aTE8bYjCTb
— Chuck Bell (@ChuckBell4) July 26, 2016
1300 block 12 St NW is now a 2 alarm fire pic.twitter.com/vV88cJieaD
— DC Fire and EMS (@dcfireems) July 26, 2016
We continue to attack the fire and working to prevent spread to adjacent building. No injuries at present pic.twitter.com/wd985UpeCm
— DC Fire and EMS (@dcfireems) July 26, 2016
![A two-alarm fire started on the roof of a building near 12th and N streets in Northwest at about 4:15 p.m. and the blaze extended into a top floor apartment. (Courtesy D.C. Fire and EMS)](https://wtop.com/wp-content/uploads/2016/07/fire-260x174.gif)
![Fire crews used a tower ladder to fight the flames and knocked it down by about 4:40 p.m. (Courtesy D.C. Fire and EMS)](https://wtop.com/wp-content/uploads/2016/07/fire2-260x174.jpg)
![](https://wtop.com/wp-content/uploads/2016/07/CoUYZ0KUEAARNVi-260x174.jpg)
WASHINGTON — A fire in Northwest D.C. sent black smoke billowing through the neighborhood Tuesday afternoon.
A two-alarm fire started on the roof of a building near 12th and N streets in Northwest at about 4:15 p.m. and the blaze extended into a top floor apartment.
D.C. Fire and EMS crews used a tower ladder to fight the flames and knocked a majority of the fire out by about 4:40 p.m.
The fire response caused some traffic disruptions and a flurry of social media activity as smoke was visible around D.C.
There are no reports of injuries.
Fire officials have not released details about what caused the fire or the estimated cost of damages.