One northbound lane on the Hume Freeway is now open after being closed for several hours after a truck fire near Locksley.
Remaining lanes will re-open when it's safe to do so.
Police and emergency services were called to the incident this morning.
It is understood the b-double truck caught fire while travelling along the Hume Fwy around 4.30am, Tuesday, January 31.
The driver managed to escape without injury.
The cause of the fire is not suspicious.
Real-time traffic conditions are available at traffic.vicroads.vic.gov.au or via the VicTraffic mobile app.