A 14-year-old girl was stabbed in an attempted robbery in an alley between Arrow Close and Axe Close on Sunday.
The victim was approached by a ‘skinny’ boy who demanded her phone.
When she refused to hand it over he produced a small knife and caused a puncture wound to the victim before leaving empty-handed and going towards the Five Springs Area.
Det Con Richard Cunningham of South Beds Robbery Unit said: “The victim has been left with a small puncture wound but this could have been much worse, we need to find this person to stop him from harming someone else.
Anyone with information relating to this incident is urged to contact DC Cunningham at Luton Police Station, in confidence, on 01582 394373, or Bedfordshire Police on 101 or text information to 07786 200011.
Alternatively you can contact the independent crime fighting charity Crimestoppers, anonymously, on 0800 555 111.