A teenager kicked a would-be robber after he was accosted by a man with a knife at Antrim train station.
The 18-year-old was approached by a man with a Ballymena accent at around 9.45pm on Monday.
The man produced a knife and demanded money from the victim, however the teenager managed to get away.
The suspect is described as in his mid-30s, around 5ft 8in, and of a thin build. He was wearing a black coat with grey pockets, black trainers, black bottoms and black gloves.
Anyone with information should call police on the non-emergency number 101.