Overturned tractor-trailer blocks lanes on I-495 outer loop near Connecticut Avenue

An overturned tractor-trailer blocked lanes on the outer loop of I-495 near Connecticut Avenue early Friday morning, according to FOX 5 DC.

The crash caused significant traffic backups for morning commuters on the Capital Beltway's outer loop in Montgomery County, Maryland.

The Montgomery County Department of Police issued a traffic advisory and lane closures shortly before 6 a.m., warning drivers of delays.

Maryland State Police are leading the investigation into the cause of the overturn and whether any injuries occurred, but no details have been released yet.

Authorities advised drivers to avoid the area and use alternate routes while crews work to clear the scene and continue the investigation.