Police were called to reports of a man exposing himself on the Tube at the station yesterday (August 7) at 3.30pm.
The man was seen wearing a top, but naked from the waist down.
In a video circulating online, one man approached the half-naked man asking him to get off the train.
In response, the man said: “F**k off.”
The incident then escalated into a group of men on the carriage kicking and punching the man.
He was detained on the floor and later taken out onto the platform.
An off-duty officer later arrested the half-naked man before detaining him under the mental health act.
He remains in hospital at this time.
Police are continuing to investigate the matter.
A spokesperson for the British Transport Police said: “Officers were called to reports of a man exposing himself on the District Line at East Ham Underground station at around 3.30pm yesterday (Thursday, August 7).
“The man had been assaulted by a number of other passengers and was initially arrested by an off duty officer, before being detained under the mental health act and taken to hospital where he remains. An investigation into the incident is ongoing.”
