Police say they are not linking a hold-up at a supermarket on Friday (January 4, 2013) to an armed robbery at a post office last month, or to two further armed robberies in Hampshire. Officers are appealing for witnesses after a woman was threatened by a gunman demanding money outside a Morrisons store in Dorset. A police spokesman said: "This was a very distressing incident for the victim but she bravely raised the alarm and was uninjured."