The attack happened after a match at the Millenium Stadium: Getty
A man has been arrested after allegedly punching a female passenger in the face repeatedly on a packed Cardiff to Swansea train.
According to the BBC, a 43-year-old man was arrested after the assault, which happened after the Wales v New Zealand match at the Millennium Stadium on Saturday.
The 27-year-old woman was taken to Swansea's Morriston Hospital after the attack, and British Transport Police (BTP) are now seeking information about the incident.
According to This Is South Wales, a BTP spokesman said: "The train, the 19.43 service from Cardiff to Swansea, would have been busy with others who may have attended the Wales v New Zealand rugby international.
"Anyone who was on the train and witnessed the alleged assault is urged to contact British Transport Police as a matter of urgency."
Call the British Transport Police on 0800 405040 or Crimestoppers on 0800 555 111. Quote incident 611, from 24 November.
Woman 'seriously injured' after falling between platform and train at Charing Cross
Video: 'Busy' commuters completely ignore man collapsed on train floor
Sign up to our weekly newsletterFollow us on TwitterBecome a fan on Facebook