Four men armed with a baseball bat, screwdriver and scissors have stolen cash from occupants of a house in Pangbourne.
It happened last Friday at around 11.15pm, when the men entered the property in Bourne Road holding the items.
They then threatened the people inside the house at the time, and forced them to hand over a quantity of cash.
The occupants were not injured.
The men then left in a dark-coloured vehicle in the direction of Reading.
Police said the men are described as wearing hooded tops with the hoods up and tracksuit trousers. They had their faces covered.
Detective Constable Gareth Perry from Newbury Force CID said: “This was an incredibly frightening incident for the occupants of the house and we are determined to identify and locate those responsible.
“I’d urge anyone with any information relating to this incident to please get in contact.”
Call 101 with information, quoting reference number 43170168326.