SIX masked men tied up a family and hit one of the adults with a hammer during an aggravated burglary.
Police say four of the gang, who were carrying knives and a hammer, forced their way into the house on the Drumbane Road in Moira, Co Down around 8 pm on Saturday.
Three children, a woman and two men, who were in the house at the time, were forced into one room.
The gang tied up the three adults with cable ties before ransacking the house.
One of the tied up men was threatened and assaulted and was struck the back of his head the hammer.
It is believed the other two gang members remained outside the house during the incident.
Two other members of the family returned to the house while the burglary was taking place and they were also tied up and forced into the same room.
The gang stole cash from the house and a car belonging to one of the family members.
Police have appealed for information or sightings of the blue Volkswagen Golf, registration number GL59 PYV.
The man who was hit with the hammer sustained bruising to his back.
None of the other family members was injured but police said they were all left shocked by their ordeal.
All six gang members were described as being dressed in dark coloured jackets, tracksuits and trainers.
They all wore woollen gloves with balaclavas covering their faces.
Four of them were said to be approximately 5’8″- 5’11” tall and of slim build.
One burglar was much shorter and the last one was over 6′ tall, of heavy build with grey hair.
Detective want anyone with information about the burglary to contact them at Lisburn police station on 0845 600 8000.