A man has been arrested on suspicion of attempted murder after another man was pushed on to the tracks of a busy central London Tube station.
Passengers on the platform at Oxford Circus helped the man to safety before the train arrived at the station, British Transport Police (BTP) said.
Witnesses to the incident, which happened at about 3pm on Saturday, are being sought.
A 25-year-old is being questioned in police custody. The victim was not injured.
Anyone with information is asked to contact BTP by text on 61016 or by calling 0800 40 50 40 quoting 379 of 3 February.