A 16-year-old girl is thought to have been electrocuted on a railway.
The teenager's body was discovered at Herne Bay station in Kent shortly before 7am on Wednesday.
British Transport Police said she was pronounced dead at the scene after sustaining serious injuries believed to be caused by electrocution.
Her death is being treated as unexplained while officers conduct investigations into how she received the injuries.
Detective Chief Inspector Paul Langley, of British Transport Police, said: "What we know so far is that the girl was with a group of friends near the station shortly before 11pm yesterday evening.
"Some time between then and 7am this morning, she came to receive these injuries.
"Therefore, I would be looking to speak with anyone who might have been near to Herne Bay station during this period."
The teenager is yet to be formally identified, but her family have been informed. A post mortem examination is due to take place on Friday.