A man is in custody after a fight at Surbiton station.
A spokeswoman for British Transport Police said they were called at 3.19pm on Tuesday to a fight between two men.
A witness said they saw an ambulance with police at the station, but there were no reported injuries.
South Western Railway said in a tweet they had received reports of an assault, and police and paramedics dealt with the incident on site.
Train times have not been affected.
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