PEAK-HOUR commuters have been warned to expect major delays after an over-height truck closed two inbound lanes in Melbourne's Domain Tunnel.
Crews were called to reports of a truck smashing into signs in the tunnel about 2.30pm, with only one lane open in the stretch connecting the Monash Freeway to the West Gate Freeway.
Major delays are expected along the Monash Freeway and Toorak Rd as crews work to clear the scene.
The over-height truck is believed to have knocked out multiple signs inside the tunnel before coming to a stop.
The crash took place minutes after another in Melbourne's CBD.
A truck and a car collision in Southbank's Burnley tunnel shut down one eastbound lane until 3pm.