NORTH RICHLAND HILLS, Texas — The two lefthand lanes Airport Freeway going westbound near the I-820 split are closed while first responders work a crash involving a jackknifed 18-wheeler that may have spilled fuel, according to the North Richland Hills Fire Department.

The department's official Twitter account confirmed that a HAZMAT unit is on the way to the scene.

This is a breaking news story; check back for updates.