South Ruislip station is currently closed and the area has been cordoned off.
A BTP spokesperson said: “Officers were called to South Ruislip Underground station at 4.24pm tonight following reports of an assault at the station.
“Paramedics also attended and a young man has been taken to hospital. His injuries are not believed to be life-threatening at this time.
“Enquiries are ongoing into the incident. Anyone who witnessed what happened is asked to contact BTP by texting 61016 or calling 0800 40 50 40 quoting reference 415 of 26/02/19.”
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