Police were called to the casualty on the tracks at 8.35am today (July 22).
Officers responded with paramedics, however a person was pronounced dead at the scene.
The incident is not being treated as suspicious, and a file will be prepared for the coroner.
There is currently no service between Kennington and Camden Town via Charing Cross southbound only, and between Kennington and Battersea Power station.
There are minor delays on the rest of the line.
Tickets are being accepted on London Buses, Southeastern, Thameslink, and South Western Railway.
If you are struggling or need to talk to someone, you can contact Samaritans for free at any time on 116 123, or visit samaritans.org for support.
A spokesperson for the British Transport Police said: “Police were called at 8.35am today (22 July) to reports of a casualty on the tracks on the Northern Line at Charing Cross railway station.
“Officers responded with paramedics, however sadly a person was pronounced dead at the scene.
“The incident is not being treated as suspicious, and a file will be prepared for the coroner.”
