Three men have broken in to a house in Wolverton, while the people who live there were still inside.
It happened on Friday at 10pm, at a property in Church Street.
Once they were inside the property, the offenders threatened the residents and stole their mobile phones, a laptop and a landline phone with the base unit.
They then left and got in to a small, silver car parked in Anson Road. The car's believed to be similar to a Volkswagen Polo, on a 03 registered plate. The offenders then drove off into Stratford Road.
The three men are black, aged between 20 and 30, between 5ft 10ins and 6ft and of stocky to medium build. They were all wearing dark-coloured clothing, hooded jackets, scarves and one of the men has gold teeth.
Police are appealing for any witnesses who may have seen a small, silver vehicle in the Wolverton area with three or more men matching the description around the time of the offence, or for anyone who has seen vehicles similar that appear to have been recently abandoned to contact them.
You can call Det. Con. Greg Hughes on 0845 8 505 505 or call Crimestoppers anonymously on 0800 555 111.