Services were disrupted this morning after reports that a person had been struck by a train near the railway station in Adlington.
Services on the Chorley to Bolton line were cancelled for nearly three hours, between 10.15am and 1pm.
A spokesman for British Transport Police said: "Officers were called to Adlington station at 10.09am this morning (March 18) following reports of a casualty on the tracks.
"Paramedics are also in attendance and sadly a person has been pronounced dead at the scene.
"Officers are currently working to identify the person and inform their family.
"The incident is not currently being treated as suspicious and a file will be prepared for the coroner."