Fire and rescue crews are at the site of a road train that caught on fire Tuesday morning following a crash on the Arnhem Highway east of the Adelaide River bridge.

NT Fire and Rescue Services said in a statement it received reports of the crash around 10am.

The driver of the road train self-extricated before the vehicle caught fire, authorities said.

Emergency services personnel are on site and the Arnhem Highway is closed in both directions as of 12pm.

“NTFRS members from Humpty Doo responded immediately and escalated the response to include additional volunteer resources,” the statement said.

“Crews worked to contain the fire and promptly extinguished the blaze.”

The public are being advised to avoid the area if possible and expect delays.

The suspected cause of the crash was not disclosed.