First responders were called shortly before noon on Sept. 6 to the eastbound lanes of the interstate, where the rear of the truck caught fire, leading to lane closures, officials said.
The incident was reported between Connecticut Avenue and Georgia Avenue.
A Montgomery County Fire and EMS spokesperson said that the fire was quickly extinguished, and there was no extension to the cargo, though the tractor-trailer had to be towed from the scene, leading to additional delays.
Just one fire truck was still at the scene as of 12:15 p.m. on Friday, though there were still residual delays with one right lane blocked.
It is unclear what caused the fire.
Want breaking news in the DMV as it happens, or want to contribute? Join the DMV All Incidents Facebook group.
Click here to follow Daily Voice Takoma Park and receive free news updates.