Image: Yass Tribune/Hannah Sparks

A truck driver has died in a fiery crash on the Hume Highway, north of Canberra.

Just before 5pm on Tuesday, a prime mover ploughed into the back of a B-double, which was broken down in the left-hand lane.

The prime mover burst into flames and the driver died at the scene, about five kilometres east of Gunning.

Emergency services were called and shut down all northbound lanes of the highway.

The driver of the B-double wasn’t injured and is helping police with their inquiries.

The deceased driver is yet to be formally identified and investigators are urging any witnesses to come forward.

Crews worked through the night before eventually reopening northbound lanes at about 7am.

From https://t.co/exN4TmGlhv All northbound lanes have reopened on the Hume Hwy 5km east of Gunning following a fatal truck crash and fire. The clean-up operation is complete there are no delays in the area. For the latest traffic information, visit https://t.co/exN4TmGlhv.

— NSW Police Force (@nswpolice) April 23, 2019