Witness appeal after four-car crash

The crash scene.

 A Millgrove woman was taken to hospital by air ambulance following a four-vehicle crash in Boronia.

Police are appealing for witnesses to the collision, which occurred on Liverpool Road at Dobson Lane about 6.35pm on Monday 13 May.

A white Holden Rodeo tray utility carrying firewood travelling south collided with a blue Holden sedan and a purple Holden utility travelling in the opposite direction.

Police said a grey Mercedes sedan subsequently collided with the blue Holden sedan.

The Millgrove woman, 30, was taken to hospital by air ambulance and two other drivers were taken to hospital in road ambulances.

The driver of the grey Mercedes left the scene but police later identified them.

The road was closed for several hours while Major Collision Investigation Unit members processed the scene.

Police are seeking anyone who witnessed the collision or saw the white Holden tray utility travelling on Liverpool Road prior to the collision.

Anyone who saw the Mercedes leaving the scene should also come forward.

Call Leading Senior Constable Huybens at Knox Highway Patrol on 9881 7900 or Crime Stoppers on 1300 333 000.

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