Three people have died after being struck by a train near Loughborough Junction in south London.
The deaths are being treated as “unexplained” and police said inquiries are being carried out to establish how they came to be on the tracks.
Emergency services were called to the station, near Brixton, at about 07:30 BST to reports of multiple bodies.
London Ambulance Service paramedics attended, but the three people were pronounced dead at the scene.
Det Supt Gary Richardson, from British Transport Police, said his “thoughts are with the family and friends of these three people”.
“My team are now working hard to understand what happened and how these three people came to lose their life on the railway,” he added.
He asked anyone who was near the station on Monday morning or “saw something which they think might be relevant” to contact police.
The station is currently open, but police warned that train services will be delayed while inquiries are carried out.