A person has been hit by a train between Chichester railway station and Havant
Read the update here: Southbourne rail casualty pronounced dead
A spokesman for British Transport Police said: "We were called at 3.45pm to reports of a casualty on the tracks. We are still in the process of responding alongside paramedics."
Southern Rail has said on Twitter: "It is with great sadness that we report a person has been hit by a train between Chichester and Havant.
"All lines are blocked between these stations whilst the emergency services work to deal with this tragedy. Service information to follow."