A single vehicle crash has occurred on the Hume Highway near Hanging Rock Road at Sutton Forest.
A Traffic Management Centre spokesperson said a car had rolled and was blocking one northbound lane.
"Traffic is slow and we advise motorists to reduce speed and proceed with caution."
The accident occurred at 12:25 pm.
Police were on the scene.
A Hume Police District spokesperson said the driver had minor injuries.
More to come.
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