Police are appealing for witnesses after a woman was assaulted by her partner at Cardiff Central Railway Station.
The incident took place on Saturday 21 October at 9.35pm.
A man and woman had an argument between platform 1 and 2 of the station. The man then kicked the woman. Passers-by saw what happened and stepped in to help.
The man was later arrested by British Transport Police.
If you were one of the people who saw the incident, you are urged to contact British Transport Police to help with their investigation.
Anyone with information is asked to contact BTP by calling 0800 40 50 40 or by texting 61016, with reference 634 of 21 October.
Alternatively, you can call Crimestoppers anonymously on 0800 555 111.