Two robbers dressed as policemen stole cash from a resident in Co Derry, claiming they were investigating counterfeit money.
At about 7.30pm on Tuesday, the men dressed in police uniforms called to a house in Seacoast Road, Magilligan and asked him to hand over any notes he had in his possession.
A sum of money was handed over and the two men left in a small hatchback car.
Both men wore yellow coats with 'Police' written on the back, black boots and trousers and caps with a badge and police written on them. They also wore yellow rubber gloves.
Detectives in Limavady are investigating the incident.
The first man was described as being around 35 years old, approx 5'7" tall, of thin build with a local accent and the second man as being in his 40's, approx 5'9", of medium build and also with a local accent.
A police statement has asked householders not to permit anyone inside their home without being 100 per cent sure of who they are, adding: "Householders should always check the ID of any unknown caller irrespective of who they claim to represent and if in doubt, not let them in."
Anyone who noticed suspicious activity between 7 and 8pm in the Seacoast Road area is asked to contact CID in Limavady on 0845 600 8000.