The terrifying incident happened at a house in the Iveagh Walk area of Banbridge last night, Saturday, August 26.
Sergeant Stephen Wilson said: “It was reported that three males wearing scarves around their faces, wearing hats and coats entered the house at approximately 10pm.
“One of the men held the 83-year-old male occupant in a chair in the living room while the other two males searched the house.
“The men fled the house with a quantity of cash.
“The man was unharmed, but left shaken by the ordeal.
“I would appeal to anyone who saw anything suspicious in the area, or anyone with any information which could assist police with their enquiries to contact Detectives at Lurgan Criminal Investigation Branch on 101 quoting reference number 1599 26/08/17.
“Information can also be given anonymously through the independent charity Crimestoppers on 0800 555 111.”