Seven Kings Rail Station is currently closed following a "serious assault" this afternoon.
Emergency services were called to the station in Redbridge at 4.10pm.
The victim's condition is currently unknown.
A spokesperson for the British Transport Police said: "Officers were called to Seven Kings station at 4.10pm following reports of a serious assault.
"The station in Redbridge is currently closed while officers respond to the incident alongside paramedics."
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