An elderly woman saw off a couple who tried to extract money from her on her own doorstep.
The pensioner had to force her door shut during the incident because the female suspect left her foot on the threshold.
Today police have issued CCTV images of the man and woman they believe committed the crime, which left the victim distressed.
The incident took place between 7.20pm and 7.50pm on Manor Lane in Penwortham last Tuesday.
Police say that a black Fiat 500 car parked up outside the Londis store on Manor Lane when a man and a woman have left the vehicle and the man has walked off in the direction of Highland Avenue while the woman knocked on the door of the victim and demanded money.
The victim, who has not been named, refused and attempted to close the door but the woman stopped her by placing her foot in the doorway. When the victim was eventually able to close her door the woman continued banging on the door and shouting through the letter box and only stopped when a neighbour intervened.
The man is described as wearing a light grey or blue long-sleeved shirt, blue jeans and dark trainers. The woman is described as having long blonde hair and wearing a pink top and blue jeans.
Community Beat Manager PC Kevin Bond said: “The police are taking this incident very seriously and I’d appeal to anyone who was in the area of Manor Lane at the time and saw anything or has any information to call police on 101. Fortunately the victim was not hurt and was not intimidated into handing over any money but the whole incident is understandably very distressing.”
People with information can also contact the independent charity Crimestoppers anonymously on 0800 555 111 or on-line at Crimestoppers-uk.org.