Police in Weston say a man in his twenties has been arrested on suspicion of public order offences - after a local couple claim their lives were threatened.

Bob Hill's told Nova News he and his wife were 'terrified' by their ordeal at about 11-30 yesterday morning - during which the man confronted them while seeming to be reaching for something in his back pocket, which he later threw under a car.

Bob says they were followed until security guards at the Tesco on Alexandra Parade called the police to detain him ... and admits they were never quite sure if he had a weapon:

CLIP