British Transport Police officers are dealing with an incident at Romford Station.
A member of station staff told 107.5 the incident started with a person jumping on the track.
They are then said to have become aggressive and BTP was called.
Paramedics are also in attendance with a 4×4 and an ambulance is also there.
There are currently no delays to services.
We’ll bring you more when we get it.
Tags: Romford, Trains