A female trespasser on the tracks at Snaresbrook stopped all Central line trains through Redbridge earlier.

Paramedics and police, including a Metropolitan Police helicopter, were scrambled to deal with the incident, which resulted in a “young woman” having to be helped from the line before being taken to hospital.

British Transport Police said: “Our officers were called to the line near Snaresbrook London Underground station at 1.40pm on Friday, October 17, following reports of a trespasser.

“Colleagues from the Metropolitan Police Service and London Ambulance Service also attended. A young woman was later helped from the line and taken to hospital for assessment.”

Services stopped and severe delays persisted through much of the afternoon but by 4pm things were clearing.

“Update: Minor Delays between Leytonstone and Epping due to a trespasser on the track earlier. Good Service on the rest of the line,” @centralline tweeted at 4.05pm.