A TEENAGE girl was punched in the face on a train at Moss Vale on Australia Day.
The 18-year-old was assaulted while the train sat at the station at around 9pm.
The girl was punched a second time causing her to fall to the floor of the carriage; a commuter has intervened with the other woman fleeing the train.
The female is described as having a slim build, about 160cm tall, long brown/blonde hair and wearing short white shorts and a dark print top.
Police are reviewing CCTV footage of the area to identify the offender.
Anyone with information should contact Bowral Police Station on 4862 9299 or Crime Stoppers on 1800 333 000.