Thames Valley Police is appealing for witnesses following a series of robberies in central Milton Keynes.
Between 7.25pm and 8.30pm on Tuesday (31/8) three people were approached by a man riding an electric scooter who told them to hand items over to him
The first victim was approached at around 7.25pm by the Xscape building next to Secklow Gate.
The second victim was approached at around 7.30pm was approached on Avebury Boulevard near the Xscape building.
The third victim was approached at around 8.30pm on Avebury Boulevard near to Saxon Gate.
No one was injured during these incidents. Wireless headphones were stolen from one of the victims.
The offender is described as a slim black man, around 6ft tall. He was wearing black clothing, a black face covering and had a man bag. Some of the victims reported seeing the offender carrying a small knife.
Detective Constable Jo Hudson, based at Milton Keynes police station, said: “We believe that these three robberies were committed by the same person and I am appealing for anyone who has any information about these incidents or, who may have seen someone fitting this description in the area of the Xscape building on Tuesday evening, to come forward.
“If you have any information that may help with this investigation, please get in touch using our online form or by calling 101, quoting reference number 43210391357. Alternatively, you can contact the independent charity Crimestoppers anonymously via their website or on 0800 555 111.”