Thames Valley Police is appealing for witnesses to an aggravated burglary in Bletchley on Monday.
At 10pm, a 17-year-old boy was at home in Granby Court with a friend, also 17, when there was a knock at the door. His friend went to answer the door and was punched in the face by a man.
Five men and a woman, armed with metal poles, barged into the flat and told the two 17-year-old boys to lie on the bed.
The group then searched the flat and stole mobile phones, an iPod and headphones before making off.
The female offender was described as being aged between 18 and 20-years-old, white, average build, 5ft 3ins, with shoulder-length dyed red/purple hair. She was wearing a black jacket and dark blue trousers.
The victims could only describe three out of the five male offenders.
The first is described as white, aged between 18 and 20, quite short. He had short blond hair and spoke with a local accent. He was wearing a red hoody, a black bandanna over his face and dark grey tracksuit bottoms.
The second man is described as white, aged between 18 and 20, 5ft 9ins, with blond hair. He was wearing a purple hoody and a black bandanna over his face.
The third man is described as white, aged between 18 and 20, quite short with blond hair and a spotty complexion. He was wearing a green hoody, dark blue trousers and dark blue jeans.
Det Con Wayne Watson of Milton Keynes CID said: “We are taking this offence very seriously and would urge anyone who saw anything in connection with this offence to get in contact.”
Anyone with any information is asked to contact Det Con Watson at Milton Keynes CID via the 24-hour Police Enquiry Centre on 0854 8 505 505. If you don’t wish to speak to the police or leave your name, please call the charity Crimestoppers on 0800 555 111.