A truck crash and fire on the Hume Freeway this morning has claimed the life of the sole occupant.

A person has died following a crash in Northwood, near Seymour, this morning.

Police and emergency services were called to a truck fire on the Hume Freeway at about 6.40am.

It is believed a truck travelling northbound on the freeway rolled before becoming engulfed in flames.

The sole occupant of the truck, who is yet to be identified, died at the scene.

Police are investigating the circumstances of the crash.

Anyone who witnessed the incident or has dashcam footage is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential crime report online at www.crimestoppersvic.com.au.

All north-bound lanes of the Hume Freeway are closed at Seymour, between Seymour-Toobarac Road and the Goulburn Valley Highway.

Motorists should exit the north-bound lanes of the freeway at Seymour-Toobarac Road and detour through the Seymour township to rejoin the Hume Freeway via the Goulburn Valley Highway.

The closure, under police control, is likely to remain in place for several hours.

Lanes will re-open as soon as it’s safe to do so. Real-time traffic conditions are available at traffic.vicroads.vic.gov.au or via the VicTraffic mobile app.