The driver is now believed to be assisting police with their investigations.
Police have warned of delays in the area with the outbound lanes of the Eastern Freeway closed near Hoddle Street.
Traffic travelling outbound from Alexandra Parade is being diverted to Queens Parade and Heidelberg Road through Wellington Street to the Chandler Highway.
Anyone with dash cam footage or information about the crash is being urged to contact Crime Stoppers on 1800 333 000.
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