A KNIFEMAN threatened his victim before driving off in her car.
The woman was on the way to see her brother on Barcroft Road, Newsome, when she felt a tug on her jacket.
She turned around to see a man brandishing a knife.
He demanded her car keys before driving off in her black Ford Fiesta.
The incident happened at about 6pm on Tuesday.
The robber was in his mid 20s, dark skinned, 5ft 10ins to 5ft 11ins tall and slim. He wore a white hooded top and had a black band around his mouth. He spoke with a local accent.
Anyone with information should call police on 0845 6060606 or Crimestoppers, anonymously, on 0800 555111.
