All Melbourne-bound lanes of the Hume Fwy are closed just south of Euroa, due to a truck fire at Longwood.
Motorists should take Avenel-Longwood Rd to return to the Hume Fwy via Locksley or Avenel.
The closure is likely to remain in place until this afternoon.
Northbound lanes are open.
The scene is under the control of emergency services, and lanes will open as soon as it is safe to do so.
Real-time traffic conditions are available at traffic.transport.vic.gov.au. The latest public transport information and network status is available at ptv.vic.gov.au or in the PTV mobile app.