Firefighters in Washington, D.C., responded early Wednesday to some two-alarm flame that engulfed a three-story residence and wounded a firefighter, officials said.
As of 1:30 a.m., the three-story dwelling near Embassy Row was"largely collapsed," according to D.C. Fire and EMS.
"#DCsBravest continue to throw water on remains of original fire building," D.C. Fire and EMS wrote on Twitter around 2 a.m."House to left had moderate damage & minor damage to house on right. Collapse zone "
A minumum of one firefighter is being evaluated for a minor accident, DC Fire and EMS Public Information Officer Vito Maggiolo told Fox News.
Officials added that researchers are on scene but their job is going to be delayed due to the"dangerous condition" of the largely collapsed renovated house.
Responders originally received a call for its two-alarm fire just prior to 1 a.m. on Wednesday, which expanded to homes on each side, based on D.C. Fire and EMS.
Firefighters attacked the blaze inside the adjoining houses and utilized master flows -- a means for a motor company to deliver water at high flow rates -- on the three-story building, officials said, according to reports.
The cause of the fire is unknown at the time.