A man who was fatally struck by a train at Munno Para railway station last night was trying to run across the tracks from one platform to another, police have confirmed.

Key points: Police said CCTV footage confirmed the man was trying to run across the tracks

Police said CCTV footage confirmed the man was trying to run across the tracks The 40-year-old from Smithfield Plains was pronounced dead at the scene

The 40-year-old from Smithfield Plains was pronounced dead at the scene Transport authorities said there was little a train driver could do to avoid a collision in this kind of situation

The man from nearby Smithfield Plains was hit just after 10:00pm at the station in Adelaide's north.

Police are investigating the incident.

"Sadly, the 40-year-old Smithfield Plains man was pronounced dead at the scene," police said in a statement.

"The train driver and passengers were not physically injured during the incident."

Police this morning reviewed CCTV footage of the incident, which they said showed the man jumping from one platform and trying to go across to the other platform.

Munno Para railway station has a pedestrian overpass, meaning passengers are not required to walk across the tracks.

Trains between Gawler and Salisbury were cancelled as emergency services attended the scene, with Adelaide Metro organising substitute buses.

A statement from the Department of Planning, Transport and Infrastructure (DPTI) said both the department and police would investigate the incident.

The department also encouraged people not to take the risk of crossing tracks at train stations, warning that trains often take long distances to stop.

"People should never enter the rail corridor unless at a signed rail crossing and only cross when it is safe to do so," a department spokesperson said.

"There are robust processes in place to provide support for train drivers should instances such as this occur, including professional counselling and internal support.

"These events are traumatic for all involved and as trains cannot swerve and can take long distances to stop, there is little a driver can do to avoid a collision if someone in on the track."

Services have resumed this morning and police are preparing a report for the coroner.