A man has been arrested by police after five pedestrians were left injured on the side of the road when a truck crashed into a traffic light in Southbank Thursday evening.
Investigators have been told the b-double tanker was travelling on City Road when it turned left at Power Street about 7pm.
It appears that while performing the left hand turn the truck cut the intersection corner and mounted the footpath, taking out the traffic light which fell to the ground.
Five pedestrians, four men and a woman all aged in their 20-30s, were in the vicinity of the corner at the time and were injured.
All five pedestrians were taken to hospital with two of the men suffering critical injuries.
The driver of the truck did not stop at the scene and continued driving along Power Street.
A motorist, who saw the incident unfold, followed the truck and provided information to police which assisted in locating the driver.
The 64-year-old driver from Wyndham Vale has been arrested and is currently assisting detectives with their enquiries.
The truck has been located in Truganina.
Investigators are appealing for anyone who witnessed the incident or with dashcam footage to come forward.
Detectives from the Major Collision Investigation Unit are currently at the scene of the crash which is expected to be cordoned off throughout the night.
Anyone with information is urged to contact Crime Stoppers on 18000 333 000 or submit a confidential crime report at www.crimestoppersvic.com.au