A casualty on the tracks was reported at the Central line station just before 9am yesterday (April 6).
Officers and London Ambulance Service crews attended, and a person was taken to hospital for treatment.
Their condition was assessed as life threatening.
The incident is not thought be suspicious.
If you feel affected by what has happened and wish to find support, you can contact the Samaritans on 116 123 via phone for a confidential chat or email jo@samaritans.org
A spokesperson for British Transport Police said: “Officers were called to Chancery Lane Underground station at around 8.59am yesterday (6 April) following reports of a casualty on the tracks.
“Officers and paramedics attended and a person has been taken to hospital with life threatening injuries.
“The incident is not thought to be suspicious.”
