A person was killed after being hit by a train at Bethnal Green Tube station, which was subsequently closed. The station has since reopened.
Transport for London said there were severe delays on the entire Central Line.
Severe delays on the entire line, due to an earlier customer incident.— Central line (@centralline) September 19, 2016
British Transport Police (BTP) said police were alerted to the incident just after 1pm.
"Officers have attended alongside the London Ambulance Service but a person has sadly been pronounced dead at the scene," BTP said.
"We are now working to identify the person and inform their family. We are not treating this incident as suspicious and a file will be prepared for the coroner."