The Arlington Fire Department has been fighting a major commercial fire in East Arlington since Sunday morning.
The fire broke out at a Self-Storage Facility near 3300 blocks on the East Pioneer Parkway, according to people familiar with the matter.
Authorities said more than 20 units of the facility were affected by the fire.
The response was upgraded to a four-warning fire, and efforts to extinguish the flames are ongoing, officials said.
According to people familiar with the matter, there have been no reports of firefighter or civilian injuries associated with the incident.