Cars Obliterated By Train In Horror Melbourne Accident

Melbourne's train system has been thrown into chaos following two accidents, including one that left two cars smashed to pieces.

Two cars involved in a bingle were hit by a train in Melbourne's southeast early on Monday, causing major delays and leaving five people -- including two children -- injured.

Police say a car was stopped on Brunt Road, Officer, when it was rear-ended by a second car shortly after 7am. Both vehicles ended up on the railway tracks and the occupants got out to exchange details, when the boom gates came down and a train started to approach.

A couple in their 70s abandoned their Toyota hatch, when they realised it had been pushed onto the train tracks. After moving to safety, a city-bound train hit their car, pushing it 150 metres and trapping it under the train.

The second car, a Holden station wagon, was also hit and extensively damaged.

The driver, a 44-year-old man from Officer, and two children who were inside the car, were taken to hospital with non-life threatening injuries.

The couple was also taken to hospital with non-life threatening injuries.

The train's 84 passengers and two Metro staff who were on board at the time were uninjured.

One of the cars involved. Photo: Simon Love

10 News First's Simon Love shared pictures of the massive damage sustained by the two vehicles.

Public Transport Victoria spokeswoman Georgia Main said the train driver was forced to use emergency brakes.

"The train on approach has seen those cars, sounded its horn and applied emergency brakes," she told AAP.

"The train driver's pretty shaken, but okay."

"One car is stuck under train. That's going to take a little bit to clear."

The line is suspended between Berwick and Pakenham, with buses replacing trains. The Gippsland VLine is also affected. Commuters are asked to consider local buses.

Just hours later, on the other side of the city, services were also delayed after a separate incident where a person was hit by a train along the Sunbury line in Melbourne's outer western suburbs, around 11am.

Metro Trains said emergency buses were being organised to replace trains between the Sunshine and Watergardens stations.

Authorities also had to make plans to get the passengers off the train.

Commuters were again advised to consider local buses as alternative transport.

With AAP.