Two teenage youths were left injured after an unprovoked attack in Dunstable, in the early hours of Saturday, August 23.
The victims, aged 18 and 19, and three other people, had been walking along Luton Road at around 1.30am when the attack happened.
Three young men approached them, assaulted the two youths, then stole two wallets and a mobile phone from them.
After people came out from nearby flats, the robbers ran off along the road, heading towards Luton.
The 18-year-old victim suffered a fractured left arm, and the 19-year-old had facial injuries and a chipped tooth. Both were left with bloodied noses and bruising.
The robbers were described as white, aged 17 to 20, and were all wearing black clothing and baseball caps.
One was about 6ft 5ins tall, another was about 5ft 9ins to 5ft 10ins tall, and one was riding a BMX bike.
The stolen mobile phone was a black Sony Ericsson W810. One of the stolen wallets was black, and the other was grey.
Anyone with information which could help is asked to contact Det Con Sarah Pickering, in confidence, on 01582 473331 or Crimestoppers, anonymously, on 0800 555111.
Bedfordshire Police Crimestoppers
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