A man has been killed after a van crashed into a truck in Melbourne’s west on Wednesday.

Emergency services responded to reports of a collision on Fuller Road, Ravenhall, about 20 kilometres west of the CBD, just before 8am.

Footage showed the front half of a delivery van crushed under a semi-trailer, which was parked at the time of the collision.

Police confirmed the driver of the van, a 57-year-old man from Werribee, died at the scene.

“The exact circumstances surrounding the collision are yet to be established,” a statement from Victoria Police said.

The van was stuck under the trailer for more than three hours on Wednesday morning as police worked to determine how many people were inside.

Crews from Fire Rescue Victoria, Ambulance Victoria, and the State Emergency Service also responded to the incident.

An investigation is ongoing.