Clean up of a hazardous material spill in Rosslyn is causing traffic to be re-routed.

Around noon, the Arlington County Fire Department received reports of the spill near 1400 Wilson Blvd. It’s currently unclear what the material is.

According to Capt. Gregg Karl, no buildings had to be evacuated because less than 10 gallons of the substance leaked. However, while hazardous materials crews clean up the spill, traffic is restricted in Rosslyn. Nash Street is closed from Wilson Blvd. to Key Blvd., and equipment is blocking part of Wilson Blvd.

It’s expected to be at least another hour before the clean up is finished. Drivers and pedestrians are advised to avoid the area.